Skip to product information
Usually ships in 2–4 business days.
Primer Hand Pump 16665-99004 For Isuzu Engine GMC
$22.99
Sale price
$22.99
Regular price
Available to Order
This Primer Hand Pump is a high-quality aftermarket replacement part compatible with Isuzu Engine GMC and matches OEM Part# 16665-99004.
Need help finding the right part? Talk with a parts expert today.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
Randy W. — Verified customer
Product Overview
The Primer Hand Pump 16665-99004 is a critical fuel system component designed for Isuzu engines utilized in GMC applications. This part ensures the fuel system can be manually primed to remove air after maintenance or filter changes, promoting reliable engine starts and consistent operation.
Key Features & Performance
- Enhanced Reliability: Manufactured to provide consistent priming pressure for diesel fuel systems.
- Robust Design: Built using fuel-resistant materials to prevent leaks and ensure longevity in demanding engine environments.
- Standardized Fit: Designed as a direct replacement for the original equipment manufacturer part to simplify the installation process.
Fitment & Compatibility
- Engine Type: Isuzu Diesel Engines
- Vehicle Make: GMC
- Part Number(s): 16665-99004
Technical Specifications
- Part Number(s): 16665-99004
- Product Category: Fuel System Components
- Material: Metal and Composite
Frequently Asked Questions
- Q: Does this primer pump include a mounting gasket? A: This listing is for the primer pump unit; verify if your specific installation requires a separate seal based on your engine model.
- Q: Is this part compatible with other diesel engines? A: This pump is specifically matched to OEM part number 16665-99004; please check your original part for this number before ordering.
Compatibility may vary by serial number. Verify fitment before purchase.