Easy
15-30 minutes
This is a genuine OEM replacement part, this item is sold individually.
The purpose of the 678169004 Thermal Relief Valve is one of safety.
In the event that the water in the pump continues to circulate without being discharged, the Thermal Relief Valve will open and release the water and pressure from the the pump so it will not be damaged.
Thermal Relief Valve 678169004
OEM part for: Ridgid, Ryobi, Homelite, Husky
Part Number: 678169004
$7.26
Usually ships in 7 - 12 business days
Leaves our warehouse within 7 - 12 business days
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Product Description ?
- Classification: Part
- Weight: 0.01 lbs.
- Also Known As: Thermal Release Valve, Pressure Relief Valve
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This part will fit the following 156 machines
Ridgid
RD80746 3000 PSI / 2.6 GPM Premium Pressure Washer View Diagrams & Manuals
RD80947 3000 PSI / 2.6 GPM Premium Pressure Washer View Diagrams & Manuals
RD80770 3800 PSI / 4.0 GPM Commercial Pressure Washer View Diagrams & Manuals
RD80763 3300 PSI / 2.8 GPM Connection Pressure Washer View Diagrams & Manuals
RD80964 3300 PSI / 2.8 GPM Connection Pressure Washer View Diagrams & Manuals
RD80971 Gasoline Pressure Washer View Diagrams & Manuals
RD80704 3000 Psi 26 Gpm Gas Pressure Washer View Diagrams & Manuals
RD80903 Gasoline Pressure Washer View Diagrams & Manuals
RD80702 Gasoline Pressure Washer View Diagrams & Manuals
RD80905 Gasoline Pressure Washer View Diagrams & Manuals
RD80701 Gasoline Pressure Washer View Diagrams & Manuals
RD80706 Gas Pressure Washer View Diagrams & Manuals
RD80945 Gasoline Pressure Washer View Diagrams & Manuals
RD80991 Gasoline Pressure Washer View Diagrams & Manuals
RD80993 Gasoline Pressure Washer View Diagrams & Manuals
RD80955 (090079244) Gasoline Pressure Washer View Diagrams & Manuals
RD80944 Gasoline Pressure Washer View Diagrams & Manuals
RD80956 (090079245) Gasoline Pressure Washer View Diagrams & Manuals
RD80955 Rd80955 Gasoline Pressure Washer Mfg. No. 090079244 3-22-17 (Rev:03) View Diagrams & Manuals
RD80956 Rd80956 Gasoline Pressure Washer Mfg. No. 090079245 3-21-17 (Rev:02) View Diagrams & Manuals
Ryobi
RY80030 Gasoline Pressure Washer View Diagrams & Manuals
RY80030A Gasoline Pressure Washer View Diagrams & Manuals
RY80940 Pressure Washer View Diagrams & Manuals
RY80940B Pressure Washer View Diagrams & Manuals
RY80518 Pressure Washer View Diagrams & Manuals
RY80930 Pressure Washer View Diagrams & Manuals
RY802800 RY802800 Pressure Washer Mfg. No. 090079267 View Diagrams & Manuals
RY80533 RY80533 Pressure Washer View Diagrams & Manuals
RY80544 RY80544 Pressure Washer View Diagrams & Manuals
RY80935 RY80935 Pressure Washer View Diagrams & Manuals
RY80940A 3100-Psi Pressure Washer View Diagrams & Manuals
RY802700 Pressure Washer View Diagrams & Manuals
RY803111 (090079288) Pressure Washer View Diagrams & Manuals
RY802723 (090079287) Pressure Washer View Diagrams & Manuals
RY803600 (090079405) Pressure Washer View Diagrams & Manuals
RY80588 (090079433) Pressure Washer View Diagrams & Manuals
RY80588A (090079444) Pressure Washer View Diagrams & Manuals
RY80942 (090079422) Pressure Washer View Diagrams & Manuals
RY803000 (090079359) Pressure Washer View Diagrams & Manuals
RY142300 (090079330) Pressure Washer View Diagrams & Manuals
RY803001 (090079398) Pressure Washer View Diagrams & Manuals
RY802900 (090079399) Pressure Washer View Diagrams & Manuals
RY80931 (090079400) Pressure Washer View Diagrams & Manuals
RY803100 (090079285) Pressure Washer View Diagrams & Manuals
RY803300H (090079430) Pressure Washer View Diagrams & Manuals
RY803000E (090079331) Pressure Washer View Diagrams & Manuals
RY142300VNM Ry142300vnm Electric Pressure Washer Mfg. No. 095079330 10-30-20 (Rev:02) View Diagrams & Manuals
RY802320VNM Ry802320vnm 2300 Psi Pressure Washer Mfg. No. 095079680 8-6-21 (Rev:01) View Diagrams & Manuals
RY802925 Ry802925 2900 Psi Pressure Washer Mfg. No. 095079510 5-7-21 (Rev:01) View Diagrams & Manuals
RY803023 Ry803023 3200 Psi Pressure Washer Mfg. No. 090079512 6-10-21 (Rev:01) View Diagrams & Manuals
RY803325 Ry803325 3200 Psi Pressure Washer Mfg. No. 090079513 7-6-21 (Rev:01) View Diagrams & Manuals
RY803423H Ry803423h 3400 Psi Pressure Washer Mfg. No. 090079505 7-27-21 (Rev:01) View Diagrams & Manuals
RY80588VNM Ry80588vnm 3200 Psi Pressure Washer Mfg. No. 095079528 7-19-21 (Rev:01) View Diagrams & Manuals
Homelite
BM80913 Black Max Pressure Washer View Diagrams & Manuals
HL80833 3-N-1 Hi-Speed Gasoline Pressure Washer View Diagrams & Manuals
HL80835 3-N-1 Hi-Speed Gasoline Pressure Washer View Diagrams & Manuals
HL252300 Pressure Washer View Diagrams & Manuals
UT80432 Pressure Washer View Diagrams & Manuals
UT80522 Pressure Washer View Diagrams & Manuals
UT80953 Pressure Washer View Diagrams & Manuals
UT80546 Pressure Washer View Diagrams & Manuals
UT80977 Pressure Washer View Diagrams & Manuals
UT80709 Pressure Washer View Diagrams & Manuals
UT80911 Pressure Washer View Diagrams & Manuals
UT80911A Pressure Washer View Diagrams & Manuals
UT80709A Pressure Washer View Diagrams & Manuals
UT80835 3-N-1 Hi-Speed Pressure Washer View Diagrams & Manuals
UT80933 3-N-1 Hi-Speed Pressure Washer View Diagrams & Manuals
UT80993 Pressure Washer View Diagrams & Manuals
BM80913A 2600 PSI Pressure Washer View Diagrams & Manuals
UT80432A 3100 PSI Gasoline Pressure Washer View Diagrams & Manuals
UT80993A 2700 PSI Gas Pressure Washer View Diagrams & Manuals
UT80522B 2700 PSI Gas Pressure Washer View Diagrams & Manuals
UT80953B 2700 PSI Gas Pressure Washer View Diagrams & Manuals
BM80915 3000 PSI Pressure Washer View Diagrams & Manuals
BM80919 2700 PSI Pressure Washer View Diagrams & Manuals
BM80919A 2700 PSI Pressure Washer View Diagrams & Manuals
CT80020 Cat Pumps Gasoline Pressure Washer View Diagrams & Manuals
CT80701 Gasoline Pressure Washer View Diagrams & Manuals
CT80801 Gasoline Pressure Washer View Diagrams & Manuals
CT80806 Gasoline Pressure Washer View Diagrams & Manuals
GC80747 G-Clean Pressure Washer View Diagrams & Manuals
HLCA80710 Pressure Washer View Diagrams & Manuals
HP3127S Gasoline Pressure Washer View Diagrams & Manuals
HU80520 Pressure Washer View Diagrams & Manuals
HU80522 Pressure Washer View Diagrams & Manuals
HU80530 Pressure Washer View Diagrams & Manuals
HU80931 Pressure Washer View Diagrams & Manuals
HU80531 Pressure Washer View Diagrams & Manuals
HU80432 Pressure Washer View Diagrams & Manuals
HU80709 Pressure Washer View Diagrams & Manuals
HU80911 Pressure Washer View Diagrams & Manuals
HU80709A Pressure Washer View Diagrams & Manuals
HU80911A Pressure Washer View Diagrams & Manuals
HU80714 Pressure Washer View Diagrams & Manuals
HU80915 Pressure Washer View Diagrams & Manuals
HU80715 Pressure Washer View Diagrams & Manuals
HU80722 Pressure Washer View Diagrams & Manuals
HU80722A Pressure Washer View Diagrams & Manuals
HU80833 3-N-1 Hi-Speed Gasoline Pressure Washer View Diagrams & Manuals
HU80833A 3-N-1 Hi-Speed Gasoline Pressure Washer View Diagrams & Manuals
HUCA80443 Pressure Washer View Diagrams & Manuals
HUCA80709A Pressure Washer View Diagrams & Manuals
PS262311 Pressure Washer View Diagrams & Manuals
PS282411 Pressure Washer View Diagrams & Manuals
PS80522 Pressure Washer View Diagrams & Manuals
PS80903A Pressure Washer View Diagrams & Manuals
PS80903B Pressure Washer View Diagrams & Manuals
PS80944 Pressure Washer View Diagrams & Manuals
PS80946 Pressure Washer View Diagrams & Manuals
PS80979 Pressure Washer View Diagrams & Manuals
PS80979A Pressure Washer View Diagrams & Manuals
PS80983 Pressure Washer View Diagrams & Manuals
UT80516 2200 PSI Gasoline Pressure Washer View Diagrams & Manuals
UT80522A Pressure Washer View Diagrams & Manuals
UT80953A Pressure Washer View Diagrams & Manuals
UT80522D Pressure Washer View Diagrams & Manuals
UT80993B Pressure Washer View Diagrams & Manuals
UT80993D Pressure Washer View Diagrams & Manuals
WF80710 Pressure Washer View Diagrams & Manuals
WF80911 Pressure Washer View Diagrams & Manuals
UT80522E Pressure Washer View Diagrams & Manuals
UT80953E Pressure Washer View Diagrams & Manuals
UT80993E Pressure Washer View Diagrams & Manuals
UT80993F Pressure Washer View Diagrams & Manuals
PS80325 (090079278) Powerstroke Pressure Washer View Diagrams & Manuals
PS803125 (Rev01)(090079381)(10-19-17) Powerstroke Pressure Washer View Diagrams & Manuals
PS80310E (090079276) Powerstroke Pressure Washer View Diagrams & Manuals
PS80313E-ECOM (Rev01)(090079379)(3-15-17) Pressure Washer View Diagrams & Manuals
PS80312E (PS80312E-ECOM)(090079294)(090079319) Pressure Washer View Diagrams & Manuals
PS80519 (090079257) Powerstroke Pressure Washer View Diagrams & Manuals
PS80516B Powerstroke Pressure Washer View Diagrams & Manuals
PS80519 Powerstroke Pressure Washer View Diagrams & Manuals
PS80517 Pressure Washer View Diagrams & Manuals
PS80519B (090079293) Powerstroke Pressure Washer View Diagrams & Manuals
PS80313E (Rev01)(090079366)(3-15-17) Pressure Washer View Diagrams & Manuals
PS80533 Powerstroke Pressure Washer View Diagrams & Manuals
Husky
HU80520 Pressure Washer View Diagrams & Manuals
HU80522 Pressure Washer View Diagrams & Manuals
HU80530 Pressure Washer View Diagrams & Manuals
HU80931 Pressure Washer View Diagrams & Manuals
HU80531 Pressure Washer View Diagrams & Manuals
HU80432 Pressure Washer View Diagrams & Manuals
HU80709 Pressure Washer View Diagrams & Manuals
HU80911 Pressure Washer View Diagrams & Manuals
HU80709A Pressure Washer View Diagrams & Manuals
HU80911A Pressure Washer View Diagrams & Manuals
HU80714 Pressure Washer View Diagrams & Manuals
HU80915 Pressure Washer View Diagrams & Manuals
HU80715 Pressure Washer View Diagrams & Manuals
HU80722 Pressure Washer View Diagrams & Manuals
HU80722A Pressure Washer View Diagrams & Manuals
HU80833 3-N-1 Hi-Speed Gasoline Pressure Washer View Diagrams & Manuals
HU80833A 3-N-1 Hi-Speed Gasoline Pressure Washer View Diagrams & Manuals
HUCA80443 Pressure Washer View Diagrams & Manuals
HUCA80709A Pressure Washer View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Pressure Washer Parts
This part replaces obsolete part #: 678169001, 678169002, 985904001
Customer Part Reviews ?
Average Rating (out of 5):
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Great OEM Part
It was an OEM part so it fit perfectly and resolved the problem I had with my power washer immediately. Great service from eReplacementParts!! Thank you.
Robert -
June 16, 2023
Verified Purchase
Easy access
I found the website easy to use with many parts available.
Guest -
May 20, 2023
Verified Purchase
Great service
Eazy fix
Guest -
September 26, 2022
Verified Purchase
Removing the old one was the hardest part
Was able to find this part and keep my pressure washer out of the landfill. I had to dremel and use extractors to get the old one out, but this one fit like a glove.
Guest -
August 2, 2022
Verified Purchase
Thermal
Arrived in good condition, on time. very pleased.
I would order from this vendor again
Guest -
July 8, 2022
Verified Purchase
I found your website and the parts list very easy to use. i opted to expedite the delivery and it arrived the next day. thanks for the great service.
The part was exactly what is was supposed to be and worked perfectly
Guest -
July 5, 2022
Verified Purchase
Fixed my problem. My pressure washer running like a new one. Was very pleased with the fast delivery.
Exactly what I needed.
Guest -
May 9, 2022
Verified Purchase
Quick repair on my pressure washer
It was easy to find the part on your website and it was delivered quick
Guest -
September 25, 2021
Verified Purchase
Easy repair
It arrived quickly Just as advertised It was fixed within 5 minutes Save me $75 at the repair shop
Guest -
June 28, 2021
Verified Purchase
So happy to find this part. And you ship to Alaska for a reasonable price.
Small part but critical to the functioning of my power washer. Very glad I found it.
Guest -
June 26, 2021
Verified Purchase
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Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
Ask our Team
We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
Does this fit my product?Questions & Answers for Thermal Relief Valve
What is the purpose of the thermal release valve
Gary
for model number Hu80432
asked on 2023-12-02
Hello Gary, thank you for your question. The purpose of the 678169004 Thermal Relief Valve is one of safety. In the event that the water in the pump continues to circulate without being discharged, the Thermal Relief Valve will open and release the water and pressure from the the pump so it will not be damaged. We hope this helps.
eReplacementParts Team December 02, 2023
Where does this part go on my husky 2006 2200 psi power washer HU 80522 s/n AXJ0620996
Mike
for model number 678169004
asked on 2023-11-16
Hi Mike,
Thank you for your question. The thermal relief valve attaches to the side of the pump. We hope this helps!
eReplacementParts Team November 16, 2023
Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Broken Thermal Relief Valve
Greg - March 30, 2016
👍 98 of 104 people found this instruction helpful
Tool Type
Pressure Washer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Adjustable Wrench, Easy out and a tourch
Parts Used
This part is aluminum and if it's broken in moving, you will need a torch to heat up the housing to melt the thread sealant and a easy out is a must if the valve is broken at the housing.
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Replaced thermal relief valve
Daniel - April 27, 2016
👍 23 of 25 people found this instruction helpful
Tool Type
Pressure Washer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, 13 mm open end wrench
Parts Used
Remove & replace the old thermal relief valve. (The old valve developed a pin hole leak.) Easy, the old one threads out and the new one threads right in. No need to use plumbers tape.
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There was no pressure to my gun
shane - May 3, 2016
👍 14 of 15 people found this instruction helpful
Tool Type
Pressure Washer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Adjustable Wrench, allen wrench
Parts Used
I watched your you tube video and replaced the pump.They instructed perfectly! I was glad I bought the thermal relief valve as my model didn't have one and wasn't sure where it went as per the diagram. The new pump required one. I fired it up and it works like new.
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Lost pressure after a few minutes
William - September 15, 2016
👍 5 of 5 people found this instruction helpful
Tool Type
Pressure Washer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set, None
Parts Used
Simply remove the old valve and install the new one.
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No Pressure
Doug - June 15, 2016
👍 4 of 5 people found this instruction helpful
Tool Type
Pressure Washer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Adjustable Wrench
Parts Used
I used an adjustable wrench to remove the old valve, and tighten the new valve.
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Relief valve was missing when I tried to use the machine
Lonnie - September 15, 2017
👍 2 of 2 people found this instruction helpful
Tool Type
Pressure Washer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Adjustable Wrench
Parts Used
Online parts diagram showed where pressure relief valve was supposed to go. With it missing, it was obvious why about half of the water was spraying out the threaded hole anytime water was turned on.
Screwed in new valve and all works fine now!
Screwed in new valve and all works fine now!
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Pump wasn't working.
James - June 28, 2017
👍 4 of 6 people found this instruction helpful
Tool Type
Pressure Washer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Pliers, Wrench Set
1. Disconnect spark plug. Removed the three bolts that connected the pump to the drive shaft at the bottom of the pressure washer. Disconnect soap tube.
2. Slid the old pump off.
3. Screwed the new thermal relief valve onto the pump (make sure to use a sealant on the valve before screwing it in.
4. Line the drive up with the new pump and ensure it lines up and fits in correctly.
5. Replace three bolts and tighten.
I didn't, but if you have soap in the dispenser, you need to clip the hose disconnect.
2. Slid the old pump off.
3. Screwed the new thermal relief valve onto the pump (make sure to use a sealant on the valve before screwing it in.
4. Line the drive up with the new pump and ensure it lines up and fits in correctly.
5. Replace three bolts and tighten.
I didn't, but if you have soap in the dispenser, you need to clip the hose disconnect.
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Would not make pressure
todd - March 27, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Pressure Washer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Adjustable Wrench
Parts Used
Easy fix $7 fix. Sweet
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Valve failed - Fell apart
RICHARD - September 12, 2018
Tool Type
Pressure Washer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set
Parts Used
Replaced valve - New one works as specified
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Thanks for voting and helping fellow customers!
Thermal relief valve broke
Daniel - August 21, 2018
Tool Type
Pressure Washer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Bored out thread, used same part
Parts Used
The valve got bent so remove the rest of it from inside of the pressure washer and there was enough thread left on the original part that I was able to put it back in there so the part I ordered is still in the bag as an extra
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Load More Install Stories
OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
