2-Pack Bosch/Zexel Diesel Feed Pump Hand Primers
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| Make / Family | Applications |
|---|---|
| Bosch / Zexel fuel systems | Feed pumps using the matching threaded hand-primer design |
Product Overview
The hand primer is used to refill and bleed the low-pressure fuel circuit after filter changes, fuel-line service or running the system out of fuel. A worn primer can leak fuel externally or admit air, making the engine difficult to prime and start.
Bosch/Zexel feed pumps were fitted to many industrial and agricultural diesel engines, and several primer thread/seat designs exist. Compare the removed primer’s thread diameter, sealing surface and overall shape before installation.
Key Features & Performance
- Two manual primer pumps per listing
- Helps purge air and refill the low-pressure diesel fuel circuit
- Suitable for compatible Bosch/Zexel feed-pump bodies
Technical Details
- Quantity: 2
- Component type: manual fuel primer
- System: diesel low-pressure feed pump
Replaces Part Numbers
No universal cross-reference number was added beyond the verified application data. Match the original component identification before purchase.
Frequently Asked Questions
Q: When is a hand primer normally used?
A: After filter replacement, line service or other work that introduces air into the low-pressure fuel system.
Q: Can I identify fitment only by brand?
A: No. Bosch and Zexel used multiple primer designs; compare the original thread and sealing arrangement.
Compare dimensions/thread/sealing style with the original primer before ordering.