Skip to product information
Usually ships in 2–4 business days.
Fuel Injection Pump 01855425 For Onan Generator HDKAH HDKAJ HDKAU Cummins Engine
$1,295.89
Sale price
$1,295.89
Regular price
Available to Order
This Fuel Injection Pump is a high-quality aftermarket replacement part compatible with Onan Generator HDKAH, HDKAJ, HDKAU and matches OEM Part# 01855425.
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
This fuel injection pump is precision-engineered to restore fuel delivery and engine performance for Onan diesel generators. Built to meet original standards, it ensures reliable operation and consistent power output for demanding applications.
Key Features & Performance
- Precision Engineering: Manufactured for accurate fuel timing and pressure.
- Durability: Constructed with high-grade materials to withstand engine heat and vibrations.
- Direct Fit: Designed as a straightforward replacement for the original unit.
- Reliability: Thoroughly tested to ensure long-term efficiency and engine stability.
Fitment & Compatibility
- Onan Generator Models: HDKAH, HDKAJ, HDKAU
- Engine Compatibility: Cummins Diesel Engines
Technical Specifications
- Part Number(s): 01855425
- Component Type: Fuel Injection Pump
- Application: Power Generation
Frequently Asked Questions
Q: How do I confirm this part fits my engine? A: Verify that your existing part number matches 01855425 or that your generator model is listed in the fitment section. Q: Is this an original equipment manufacturer part? A: This is a high-quality aftermarket component designed to match the performance and specifications of the original part.
Compatibility may vary by serial number. Verify fitment before purchase.