Koyo PU285739RR1DV Timing Belt Tensioner – Honda Civic / CRX

The Koyo PU285739RR1DV timing belt tensioner is a high-quality Japanese component designed for classic Honda engines from the late 1980s and 1990s. Koyo is one of the last bearing and tensioner manufacturers that still produces entirely in Japan, ensuring exceptional precision, durability and OEM-equivalent performance.

This tensioner keeps the timing belt at the correct tension, ensuring stable valve timing and protecting the engine from misalignment or belt-related failures. In D-series Honda engines, a worn tensioner can cause belt flutter, noise, or—in extreme cases—serious mechanical damage. Installing a new Koyo tensioner significantly improves reliability and long-term engine operation.

Why choose the Koyo PU285739RR1DV tensioner?

• 100% Made in Japan – no outsourced production.
• OEM-level precision – Koyo supplies bearings and rollers for Honda factory assembly.
• Excellent durability – stable operation even under high temperature and long-term load.
• Direct fitment – replaces original Honda OEM part numbers.

Replaces the following Honda OEM part numbers

14510-PM7-003
14510-PM7-004

Vehicle compatibility

Fits many Honda models equipped with D-series engines:

• Honda Civic 1988–1991 EC8
• Honda Civic 1988–1991 EC9
• Honda Civic 1988–1991 ED2
• Honda Civic 1988–1991 ED3
• Honda Civic 1988–1991 ED4
• Honda Civic 1988–1991 ED7
• Honda Civic 1988–1991 ED60
• Honda Civic 1992–1995 EG3
• Honda Civic 1992–1995 EG4
• Honda Civic 1992–1995 EG8
• Honda Civic 1994–1997 MA8
• Honda Civic 1994–1995 MB1
• Honda Civic Coupe 1994–1996 EJ2
• Honda Civic Aerodeck 1998–2001 MC1
• Honda CRX 1988–1991 ED9
• Honda Civic Shuttle 1987–1991 EE2
• Honda Civic Shuttle 1987–1991 EE4
• Honda Concerto 1990–1995 HW

Engine codes

D13B1, D13B2, D14A1, D14A2, D15B2, D15B7, D16A6, D16Z2, D16Z5, D16A8, D16A9, D16Y3

Installation notes

For best results, it is recommended to replace the tensioner together with the complete timing belt kit. These engines rely heavily on proper belt tension. Installation should be performed by a mechanic experienced with older Honda D-series engines to ensure correct preload and belt alignment.