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Knob-Arm

Part Number: 25-7740
ToroLawn Boy
Availability: 14 in stock
Price: $3.92
Ships within 1 business day

*This part replaces obsolete part #: 8-4220 and 6-6230.

Product Information
Manufacturer: Toro, Lawn Boy
Product Number: 25-7740
Classification: Part
Weight: 0.02 lbs.
Shipping: Ships Worldwide
Description:
An authentic replacement part that is specially manufactured for use with Toro lawn mowers. This is the knob that is secured to the heigh-adjustment arm assembly, for correct location and uses make sure to check appropriate diagrams of your model. Please note this durable plastic part is sold individually.
Compatibility

This part is compatible with the following machines:

Toro
10500 (1000001-1999999)(1981) Lawn Mower
10502 (1000001-1999999)(1981) Lawn Mower
10510 (1000001-1999999)(1981) Lawn Mower
16000 (1000001-1999999)(1971) Lawn Mower
16009 (7000001-7999999)(1977) Lawn Mower
16009 (8000001-8999999)(1978) Lawn Mower
16009 (9000001-9999999)(1979) Lawn Mower
16035 (7000001-7999999)(1977) Lawn Mower
16050 (2000001-2999999)(1972) Lawn Mower
16067 (7000001-7999999)(1977) Lawn Mower
16067 (8000001-8999999)(1978) Lawn Mower
16067 (9000001-9999999)(1979) Lawn Mower
16073 (3000001-3999999)(1973) Lawn Mower
16073 (4000001-4999999)(1974) Lawn Mower
16073 (5000001-5999999)(1975) Lawn Mower
16073 (6000001-6999999)(1976) Lawn Mower
16077 (0000001-0999999)(1980) Lawn Mower
16077 (1000001-1999999)(1981) Lawn Mower
16077 (2000001-2999999)(1982) Lawn Mower
16106 (7000001-7999999)(1977) Lawn Mower
16111 (1000001-1999999)(1971) Lawn Mower
16113 (7000001-7999999)(1977) Lawn Mower
16113 (8000001-8999999)(1978) Lawn Mower
16113 (9000001-9999999)(1979) Lawn Mower
16155 (7000001-7999999)(1977) Lawn Mower
16155 (8000001-8999999)(1978) Lawn Mower
16155 (9000001-9999999)(1979) Lawn Mower
16165 (0000001-0999999)(1980) Lawn Mower
16165 (1000001-1999999)(1981) Lawn Mower
16165 (2000001-2999999)(1982) Lawn Mower
16165 (3000001-3999999)(1983) Lawn Mower
16165 (4000001-4999999)(1984) Lawn Mower
16165C (5000001-5999999)(1985) Lawn Mower
16165C (6000001-6999999)(1986) Lawn Mower
16169 (5000001-5999999)(1975) Lawn Mower
16169 (6000001-6999999)(1976) Lawn Mower
16172 (2000001-2999999)(1972) Lawn Mower
16172 (3000001-3999999)(1973) Lawn Mower
16172 (4000001-4999999)(1974) Lawn Mower
16173 (3000001-3999999)(1973) Lawn Mower
16173 (4000001-4999999)(1974) Lawn Mower
16173 (5000001-5999999)(1975) Lawn Mower
16173 (6000001-6999999)(1976) Lawn Mower
16202 (4000001-4999999)(1984) Lawn Mower
16202C (5000001-5999999)(1985) Lawn Mower
16202C (6000001-6999999)(1986) Lawn Mower
16202C (7000001-7999999)(1987) Lawn Mower
16202C (8000001-8999999)(1988) Lawn Mower
16212 (4000001-4999999)(1984) Lawn Mower
16212 (5000001-5999999)(1985) Lawn Mower
16212 (0000001-0999999)(1990) Lawn Mower
16212B (2000001-2999999)(1992) Lawn Mower
16212B (39000001-39999999)(1993) Lawn Mower
16212C (6000001-6999999)(1986) Lawn Mower
16212C (7000001-7999999)(1987) Lawn Mower
16212C (8000001-8999999)(1988) Lawn Mower
16212C (9000001-9999999)(1989) Lawn Mower
16212CG (9000001-9999999)(1989) Lawn Mower
16212W (0000001-0999999)(1990) Lawn Mower
16212WG (0000001-0999999)(1990) Lawn Mower
16222 (1000001-1999999)(1971) Lawn Mower
16240 (5000001-5999999)(1975) Lawn Mower
16255 (3000001-3999999)(1973) Lawn Mower
16255 (4000001-4999999)(1974) Lawn Mower
16264 (7000001-7999999)(1977) Lawn Mower
16268 (5000001-5999999)(1975) Lawn Mower
16273 (3000001-3999999)(1973) Lawn Mower
16273 (4000001-4999999)(1974) Lawn Mower
16273 (5000001-5999999)(1975) Lawn Mower
16273 (6000001-6999999)(1976) Lawn Mower
16277 (7000001-7999999)(1977) Lawn Mower
16277 (8000001-8999999)(1978) Lawn Mower
16277 (9000001-9999999)(1979) Lawn Mower
16287 (7000001-7999999)(1977) Lawn Mower
16287 (8000001-8999999)(1978) Lawn Mower
16287 (9000001-9999999)(1979) Lawn Mower
16297 (0000001-0999999)(1980) Lawn Mower
16297 (1000001-1999999)(1981) Lawn Mower
16297 (2000001-2999999)(1982) Lawn Mower
16297 (3000001-3999999)(1983) Lawn Mower
16297 (4000001-4999999)(1984) Lawn Mower
16297C (5000001-5999999)(1985) Lawn Mower
16299 (4000001-4999999)(1984) Lawn Mower
16299 (5000001-5999999)(1985) Lawn Mower
16299C (6000001-6999999)(1986) Lawn Mower
16299C (7000001-7999999)(1987) Lawn Mower
16299C (8000001-8999999)(1988) Lawn Mower
16300 (9000001-9999999)(1979) Lawn Mower
16300 (0000001-0999999)(1980) Lawn Mower
16300 (1000001-1999999)(1981) Lawn Mower
16300 (2000001-2999999)(1982) Lawn Mower
16310 (9000001-9999999)(1979) Lawn Mower
16310 (0000001-0999999)(1980) Lawn Mower
16310 (1000001-1999999)(1981) Lawn Mower
16310 (2000001-2999999)(1982) Lawn Mower
16320 (9000001-9999999)(1979) Lawn Mower
16320 (0000001-0999999)(1980) Lawn Mower
16320 (1000001-1999999)(1981) Lawn Mower
16320 (2000001-2999999)(1982) Lawn Mower
16325 (3000001-3999999)(1983) Lawn Mower
16330 (3000001-3999999)(1983) Lawn Mower
16330 (4000001-4999999)(1984) Lawn Mower
16330 (5000001-5999999)(1985) Lawn Mower
16340C (5000001-5999999)(1985) Lawn Mower
16340C (6000001-6999999)(1986) Lawn Mower
16340C (7000001-7999999)(1987) Lawn Mower
16350 (9000001-9999999)(1979) Lawn Mower
16350 (0000001-0999999)(1980) Lawn Mower
16350 (1000001-1999999)(1981) Lawn Mower
16360 (9000001-9999999)(1979) Lawn Mower
16360 (0000001-0999999)(1980) Lawn Mower
16370 (9000001-9999999)(1979) Lawn Mower
16380 (9000001-9999999)(1979) Lawn Mower
16380 (0000001-0999999)(1980) Lawn Mower
16400 (1000001-1999999)(1991) Lawn Mower
16400 (2000001-2999999)(1992) Lawn Mower
16400 (3900001-3999999)(1993) Lawn Mower
16400 (4900001-4999999)(1994) Lawn Mower
16400 (5900001-5999999)(1995) Lawn Mower
16400 (6900001-6999999)(1996) Lawn Mower
16401 (1000001-1999999)(1991) Lawn Mower
16401 (2000001-2999999)(1992) Lawn Mower
16401 (39000001-39999999)(1993) Lawn Mower
16401 (4900001-4999999)(1994) Lawn Mower
16401 (59000001-59999999)(1995) Lawn Mower
16401 (6900001-6999999)(1996) Lawn Mower
16401 (7900001-7999999)(1997) Lawn Mower
16401 (890000001-899999999)(1998) Lawn Mower
16402 (1000001-1999999)(1991) Lawn Mower
16403 (1000001-1999999)(1991) Lawn Mower
16403 (2000001-2999999)(1992) Lawn Mower
16404 (1000001-1999999)(1991) Lawn Mower
16404 (2000001-2999999)(1992) Lawn Mower
16410 (3900001-3999999)(1993) Lawn Mower
16411 (3900001-3999999)(1993) Lawn Mower
16550 (8000001-8999999)(1978) Lawn Mower
16551 (9000001-9999999)(1989) Lawn Mower
16570 (3000001-3999999)(1983) Lawn Mower
16575 (4000001-4999999)(1984) Lawn Mower
16575 (5000001-5999999)(1985) Lawn Mower
16575 (6000001-6999999)(1986) Lawn Mower
16575 (7000001-7999999)(1987) Lawn Mower
16575 (8000001-8012678)(1988) Lawn Mower
16575 (8012679-8999999)(1988) Lawn Mower
16575 (9000001-9999999)(1989) Lawn Mower
16575 (0000001-0999999)(1990) Lawn Mower
16575C (8000001-8999999)(1988) Lawn Mower
16575C (9000001-9999999)(1989) Lawn Mower
16576 (0000001-0999999)(1990) Lawn Mower
16580 (3000001-3999999)(1983) Lawn Mower
Expand the 150+ compatible machines
Products Compatibility

This item works with the following types of products:

  • • Lawn Mower
Questions & Answers

No questions have been asked yet
Repair Instructions: Submitted by Customers Like You
Tool Type:
Lawn Mower
Parts Used:
Knob-Arm - 25-7740
Repair Difficulty:
Easy
Time Spent Repairing:
Less than 15 minutes
Tools Used:
Height tab broke
Pushed the new one on.
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Tool Type:
Lawn Mower
Parts Used:
Knob-Arm - 25-7740
Spring Arm Asm Sp - 63-8720
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Pliers, Socket set
Replacing mower height adjustor
I removed the wheel , then I laid out all of the parts in order that had to be removed to get to the spring arm. You may want to take a picture first too. I then replaced the spring arm. Then put all of the parts I had taken off back on. Then place the knob on the spring arm. Not too difficult once I got past the lock pins and gear. 26 year old Toro and still running great.
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    Product Information
    Manufacturer: Toro, Lawn Boy
    Product Number: 25-7740
    Classification: Part
    Weight: 0.02 lbs.
    Shipping: Ships Worldwide
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