Description
JT rear sprocket steel 42t-520 yam. Manufacturer part number JTR853.42.
WPS part number 55-85342.
Performance Tool 25 Pk Shop Towels — W1476
$21.95
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JT Rear Sprocket Steel 42T-520 Yam — JTR853.42
$25.95
JT rear sprocket steel 42t-520 yam.
In stock
Vehicle fitment
WPS lists this part for the following vehicles. Match your exact model and year.
Follow the position, mounting and installation notes in the product description. Modified vehicles may require different parts.
| Years | Make | Model |
|---|---|---|
| 1977–1978 | Yamaha | Dt400 |
| 1980–1983 | Yamaha | It175 |
| 1984–1986 | Yamaha | It200 |
| 1977–1979, 1981–1983 | Yamaha | It250 |
| 1977–1979 | Yamaha | It400 |
| 1980 | Yamaha | It425 |
| 1981–1982 | Yamaha | It465 |
| 1983–1984 | Yamaha | It490 |
| 1975 | Yamaha | Mx250 |
| 1975 | Yamaha | Mx400 |
| 1999–2000, 2003–2004 | Yamaha | TT-R250 |
| 1986–1987 | Yamaha | TT350 |
| 1976–1981 | Yamaha | TT500 |
| 1983–1986 | Yamaha | TT600R |
| 1992 | Yamaha | WR200 |
| 1991–1996 | Yamaha | WR250 |
| 1998 | Yamaha | WR400F |
| 1992–1993 | Yamaha | WR500 |
| 1976–1981 | Yamaha | XT500 |
| 1989–2004 | Yamaha | YFM350X Warrior |
| 2001–2005 | Yamaha | YFM660R Raptor |
| 1988–2006 | Yamaha | YFS200 Blaster |
| 1989–2006 | Yamaha | YFZ350 Banshee |
| 1985–1986 | Yamaha | YTZ250 Tri-Z |
| 1982–1983 | Yamaha | YZ100 |
| 1980–1998 | Yamaha | YZ125 |
| 1974–1998 | Yamaha | YZ250 |
| 1974–1975 | Yamaha | YZ360 |
| 1977–1979 | Yamaha | YZ400 |
| 1998 | Yamaha | YZ400F |
| 1980–1981 | Yamaha | YZ465 |
| 1982–1989 | Yamaha | YZ490 |
Source: WPS vehicle-fitment data · WPS part 55-85342 · Checked November 11, 2026.
Additional information
| Weight | 1.5 lbs |
|---|---|
| Dimensions | 10.2 × 8.9 × 0.8 in |
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