Product Specifications
| Parameter | Details |
|---|
| Part Name | Push Rod Cover & Gasket Kit |
| Part Number (OEM Reference) | 5365772, 3936188, 3927917 / 3283767, 3904056, 3922078, 3928831, 3900544, 3903837 |
| Brand Compatibility | Cummins |
| Machine Model Fitment | 4BT, 4B3.9, B3.9 G, B3.9 CM2620, B171C |
| Condition | New Aftermarket |
| Warranty | 6-month standard warranty against manufacturing defects |
| Packaging | Individual sealed polybag with branded label, packed in reinforced corrugated box |
Compatible Models
| Brand | Applicable Models |
|---|
| Cummins | 4BT, 4B3.9, B3.9 G, B3.9 CM2620, B171C |
Tired of Leaking Tappet Covers and Failed Gaskets on Your Cummins 4BT Engine?
Every hour your engine sits idle due to a failed push rod cover or degraded gasket means lost productivity — especially on tight construction or mining schedules. Counterfeit or low-grade gaskets swell, crack, or compress unevenly, leading to oil leaks, pressure loss, and repeated teardowns. OEM parts often take 3–4 weeks to arrive, while local suppliers rarely stock both the cover and correct gasket set for Cummins B3.9 variants.
OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse
This Cummins 4BT push rod cover gasket kit delivers exact dimensional and material compliance with original specifications — verified by our 20+ technical team before shipment. Built to support daily operation in excavators, generators, and industrial pumps powered by Cummins 4B3.9 engines, each kit undergoes pre-shipment functional testing for sealing integrity under simulated operating pressure. With 10 years’ experience supplying engine components to repair centers across North America, Africa, and Southeast Asia, we maintain over 10,000 SKUs in stock — including this critical Cummins 4BT tappet cover replacement.
Where This Part Works
This kit is routinely installed during scheduled maintenance and emergency repairs on construction sites, quarry operations, port container handlers, and agricultural power units using Cummins 4BT and 4B3.9 engines. In high-vibration, high-temperature environments — such as diesel-powered hydraulic excavators running 12+ hours per shift — consistent sealing performance prevents oil ingress into valve train areas and avoids contamination of camshaft lobes. Correct fitment ensures long-term reliability where Cummins B3.9 engine cover gasket set integrity directly affects uptime and service intervals.
Engineering Details That Matter
The push rod cover is precision-cast from high-silicon aluminum alloy (A380), matching OEM thermal expansion and rigidity to prevent warping under repeated heat cycles. The tappet cover gasket uses multi-layer steel (MLS) construction with nitrile rubber coating — resistant to diesel oil, coolant splash, and temperatures up to 220°C. Surface finish on mating flanges is held to Ra ≤ 1.6 µm to ensure uniform compression without blowout. All gasket thickness tolerances are controlled within ±0.05 mm to guarantee even clamping force distribution across all 12 mounting points. Each component is marked with batch code and inspected for burrs, porosity, and thread integrity before packaging.
The Real Cost of Wrong Parts
A $12 counterfeit gasket may save upfront cost but risks $1,200+ in labor for re-torquing, cleaning, and reassembly — not counting downtime penalties on time-and-materials contracts. Oil leakage from improper seal compression can contaminate the air filter housing, trigger false sensor readings, and accelerate wear on lifters and rocker arms. Our Cummins 4B3.9 push rod cover gasket kit meets ISO 9001 production standards and passes 72-hour salt-spray corrosion testing (ASTM B117). Total cost of ownership drops when you eliminate repeat failures — that’s why fleet operators in Australia and South Africa report 3.2x longer service life versus generic alternatives.
Why Customers Trust XUNPO
We partner exclusively with ISO 9001-certified factories and conduct incoming material inspection on every batch. Every Cummins 4BT push rod cover and gasket undergoes 100% functional sealing test at 3.5 bar before shipment. All kits carry a 6-month warranty covering manufacturing defects — no questions asked. With 10 years exporting to 120+ countries, our technical team has verified over 15,000 Cummins part applications. You’ll get an accurate compatibility response within 2 hours when you submit your machine model. And because we hold 10,000+ SKUs in our Guangzhou warehouse, your order ships in 2–5 working days — no factory lead time delays.
Packaging & Shipping
- Each kit is sealed in anti-static polybag with printed part numbers and brand logo, then placed in custom-cut foam insert inside rigid double-wall corrugated box
- In-stock items ship within 2–5 working days after payment confirmation
- Flexible logistics: DHL/FedEx/UPS express (3–7 days), air freight (7–12 days), sea freight (25–40 days)
- Real-time tracking number provided upon dispatch via email and WhatsApp
- MOQ is 1 piece — designed for urgent field repairs and small-batch maintenance shops
Get Your Cummins 4BT Push Rod Cover Kit Now
Your engine shouldn’t wait weeks for a simple cover and gasket. Send us your part number (e.g., 5365772 or 3283767), exact engine model (e.g., Cummins 4B3.9 CM2620), and quantity — we’ll reply with a competitive quote within 24 hours. First-time buyers can request a sample for physical verification. Stock is ready; your downtime isn’t.
Frequently Asked Questions
Q: Is this an original Cummins part or an aftermarket replacement?
A: This is an OEM-equivalent aftermarket kit manufactured in ISO 9001-certified facilities to meet Cummins dimensional, material, and performance specifications.
Q: How do I confirm if this fits my specific engine?
A: Provide your engine model (e.g., “Cummins B3.9 G” or “4B3.9 CM2620”) and we’ll verify compatibility using our cross-reference database — response guaranteed within 2 hours.
Q: What is the warranty period?
A: 6 months standard warranty covering manufacturing defects. Extended 12-month coverage available upon request for qualifying bulk orders.
Q: What is the minimum order quantity?
A: 1 piece — no exceptions. Ideal for urgent repairs, testing, or small workshops.
Q: How fast can I receive the parts?
A: In-stock items ship from Guangzhou within 2–5 working days. Express courier delivery takes 3–7 days depending on destination.
Q: Can I request a sample before placing a bulk order?
A: Yes — first-time customers may request one sample kit for physical evaluation and fitment check.
Ready to order or need a quote?
Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 13316055942 | Email: talos@xunpojx.com
