This is the genuine Yanmar 129A00-59700, the high-pressure pipe Yanmar names “pipe assy, rail in”. One per engine.
Yanmar’s parts lists show it on the 4TNV88C-DHKS with supply pump 129A00-51000 and on the 3TNV88C-KKEV with pump 129C28-51000. Both pump numbers are on our Bosch CP4.1 pump page.
The 4TNV98CT-NEN uses a different rail in pipe, 129E00-59700.
Confirm Fitment Before You Order
Yanmar lists this pipe by engine build. Send us your engine model and serial number before you order. Call 530-668-0818 and we will confirm the exact match at no charge before anything ships.
Specifications
| Part number | 129A00-59700 |
| Brand | Yanmar |
| Condition | New, genuine, in original packaging |
| Warranty | Manufacturer’s own warranty applies. Call us and we handle the claim. |
| Type | High-pressure pipe, rail in |
| Engines | Yanmar 4TNV88C-DHKS, 3TNV88C-KKEV |
| With pumps | Yanmar 129A00-51000, 129C28-51000 |
| Quantity | One per engine |
| Not for | Yanmar 4TNV98CT-NEN (uses 129E00-59700) |
| Shipping weight | 0.3 lb |
Fits / Applications
- Yanmar 4TNV88C-DHKS with supply pump 129A00-51000: 1 per engine
- Yanmar 3TNV88C-KKEV with supply pump 129C28-51000: 1 per engine
Follow the workshop manual for your engine when you fit this part.
Part Numbers & Cross Reference
Yanmar 129A00-59700
Send us your engine serial number and we will confirm the exact match against your build before anything ships. That check is free and takes a few minutes.
Frequently Asked Questions
Which engines does it fit?
Yanmar lists it on the 4TNV88C-DHKS and 3TNV88C-KKEV. The 4TNV98CT-NEN uses 129E00-59700.
Will it fit my engine?
Call 530-668-0818 with your engine model and serial number and we will confirm it.
Related Parts
Why Buy From Valley Fuel Injection
We are a diesel fuel-injection and turbocharger shop in Woodland, CA, rebuilding pumps, injectors and turbos on our own benches since 1993, not a drop-ship storefront. Call us with your engine serial, VIN or build date before you order and we will help you confirm fitment, so the right part arrives the first time.
UPS to all 50 states, including Alaska and Hawaii. Your rate shows at checkout. Questions on fitment? Call 530-668-0818.
Pricing covers the unit itself. Any applicable sales tax is additional; shipping is calculated at checkout. Buying tax-exempt? Qualifying diesel repair shops, fleets, farms, and agricultural operations can purchase tax-free. Set up tax-exempt purchasing once and every qualifying order is tax-free going forward.



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