Quick Answer: Volgen Power is a China-based (Hubei) ISO9001-certified Cummins 6BT parts supplier and direct manufacturer with 28+ years of experience serving fleet operators, repair shops and distributors in 70+ countries.
What we supply: OEM-quality Cummins 6BT / 5.9L parts — gasket sets, cylinder heads, pistons & rings, crankshafts, camshafts, turbochargers, fuel systems and complete rebuild kits.
Key advantages: 20–40% below aftermarket retail · MOQ from 1 piece (sample) · 12-month warranty · <0.2% defect rate · ships in 5–35 days worldwide.
Contact: Email [email protected] · WhatsApp +86 188 2743 5225.
Looking for a reliable Cummins 6BT parts supplier? Volgen Power is a leading manufacturer and B2B diesel parts supplier of OEM-quality Cummins 6BT engine parts, serving fleet operators, repair shops and distributors worldwide. With over 10 years of experience supplying heavy-duty diesel engine spares, we deliver high-quality parts at competitive factory prices — and back them with a 12-month warranty. For a full technical overview of this engine, see our Cummins 6BT engine complete guide.
Whether you need gasket sets, cylinder head components, pistons, crankshafts, aftermarket marine engine parts or complete wholesale Cummins 5.9 rebuild kits, Volgen Power has you covered. Our Cummins 5.9L replacement components meet or exceed OEM specifications and come with a strict quality guarantee.
Why Choose Volgen Power as Your Cummins 6BT Parts Supplier
When sourcing Cummins 5.9 aftermarket parts or OEM replacements, choosing the right supplier is critical. Poor-quality parts lead to premature failure, costly downtime and unhappy customers. Here's why global buyers trust Volgen Power:
1. Direct Factory Pricing & ISO-Certified Quality
As a true manufacturer, we offer 20-40% lower prices than standard aftermarket distributors. Our ISO9001-certified factory in Hubei, China produces parts directly, cutting out unnecessary middlemen.

2. OEM-Quality Manufacturing & Real Testimonials
Every part we produce undergoes rigorous testing to ensure a defect rate of less than 0.2%. Our quality control process includes:
- Raw material metallurgical inspection (spectrometer analysis)
- Precision CNC machining with CMM dimensional verification
- Performance and stress testing (fatigue testing for crankshafts)
- Final quality audit before shipment
"We switched to Volgen Power for our Cummins 6BT overhaul kits last year. The valve seating on their cylinder heads is flawless, and we've had zero warranty claims from our fleet customers. Highly recommended B2B diesel parts supplier."
— David M., Procurement Manager, Heavy Machinery Repair (UK)

3. Fast Global Shipping & Flexible MOQ
We ship to over 100 countries with flexible order sizes:
- Sample orders: 1 piece (for quality testing)
- Small orders: 10-50 pieces
- Bulk orders: 100+ pieces with volume discounts
- Shipping: Express (5-7 days) · Air (7-10 days) · Sea (25-35 days)
Ready to get factory-direct Cummins 6BT pricing?
Send your OEM part numbers & quantity — we reply within 24 hours.
? Email [email protected] ? WhatsApp UsCummins 6BT 5.9L Engine Specifications
The Cummins 6BT is one of the most successful medium-duty diesel platforms ever built. Understanding its core specs helps you order the exact replacement parts for your engine serial number:
| Parameter | Specification |
|---|---|
| Displacement | 5.9 L (359 cu in) |
| Configuration | Inline 6-cylinder, turbocharged |
| Bore × Stroke | 102 mm × 120 mm |
| Compression Ratio | 17.5 : 1 |
| Power Output | 160 – 300 HP |
| Peak Torque | 400 – 660 lb-ft |
| Fuel System | Bosch VE / P7100 / VP44 / CP3 (24V) |
| Production Years | 1984 – 2002 (12V & 24V variants) |
| Common Rebuild Interval | 400,000 – 600,000 miles |
For OEM torque specs, service intervals and troubleshooting checklists, read our 2025 Cummins 6BT maintenance tips & OEM parts guide.
Cummins 6BT Engine Overview – Video Guide
Watch this short video walkthrough of the Cummins 6BT 5.9L diesel engine to better understand its structure, key components, and why it remains one of the most reliable inline-6 diesel engines in the world.
▶ Video: Cummins 6BT 5.9L diesel engine explained – specifications, components, and applications.
Cummins 6BT Parts We Supply
Volgen Power offers a complete range of Cummins 6BT engine parts. Below is our main catalog with commonly requested OEM part numbers:
| Part Category | Available Parts | OEM Part Numbers |
|---|---|---|
| Gasket Sets | Full engine gasket set, head gasket set, intake/exhaust gasket | 3921995, 3931233 |
| Cylinder Head | Complete cylinder head, valves, valve springs, guides | 3973493, 3927282 |
| Pistons & Rings | Piston kits, ring sets, wrist pins | 3929465, 3934579 |
| Crankshaft | Crankshaft, main bearings, rod bearings | 3934754, 3928946 |
| Camshaft | Camshaft, cam followers, lifters | 3925576, 3927280 |
| Turbocharger | Complete turbo assembly, turbo rebuild kits | 3592789, 3802891 |
| Fuel System | Injectors, nozzles, high-pressure fuel pump | 4944883, 3930987 |
| Cooling System | Water pump, thermostat, heavy-duty hoses | 3931140, 3922949 |
Get the full 2026 Cummins 6BT parts catalog & wholesale price list
? Request Full CatalogVolgen Power vs Other Cummins 6BT Parts Suppliers
Not all Cummins 6BT suppliers are equal. Here's how a true manufacturer compares against typical Alibaba traders and local distributors:
| Feature | Volgen Power | Typical Alibaba Trader | Local Distributor |
|---|---|---|---|
| Manufacturer or Trader | ✅ Direct Factory | ❌ Trader | ❌ Reseller |
| Price vs OEM Retail | 20–40% lower | 10–20% lower | Same as OEM |
| Warranty | 12 months | 3 months | 12 months |
| MOQ | 1 pc (sample) | 50+ pcs | 1 pc (high price) |
| Lead Time | 5–35 days | 30–45 days | In stock |
| ISO9001 Certification | ✅ Yes | Sometimes | ✅ Yes |
| Technical Support | ✅ Senior diesel engineers | Limited | Varies |
How to Avoid Fake or Low-Quality Cummins 6BT Parts
The market is flooded with cheap, substandard parts that look identical to OEM but fail quickly under load. As an experienced Cummins 6BT parts supplier, we recommend checking these three things before buying:
- Material Verification: Many low-quality aftermarket crankshafts use cheap cast iron. Volgen Power uses high-strength forged steel for maximum durability under high torque.
- Machining Precision: Counterfeit cylinder heads often have poor valve seat machining, leading to compression loss. Always ask your supplier for tolerance testing reports (CMM data).
- Warranty Terms: A supplier selling cheap knock-offs will rarely offer more than a 3-month warranty. Look for suppliers (like Volgen Power) who offer a minimum 12-month quality guarantee.
Cummins 6BT Engine Applications
The Cummins 6BT 5.9L engine is versatile and widely used across multiple industries, creating a steady global demand for replacement parts:
| Application | Common Models & Notes |
|---|---|
| Light / Medium Trucks | Dodge Ram 2500 / 3500, Ford F-600 |
| Construction Equipment | Caterpillar, Komatsu loaders and excavators |
| Agricultural Equipment | Tractors, combines, irrigation pumps |
| Generator Sets | 50-100 kW standby generators |
| Marine | Commercial fishing boats, tugboats — see our marine & industrial 6BT assembly guide |
Cummins 4BT vs 6BT – Which One Do You Need?
Buyers frequently ask us whether they need 4BT or 6BT parts. The two engines share the same "B-series" DNA but target different power classes:
| Spec | Cummins 4BT | Cummins 6BT |
|---|---|---|
| Displacement | 3.9 L | 5.9 L |
| Cylinders | 4 inline | 6 inline |
| Power Range | 105 – 170 HP | 160 – 300 HP |
| Typical Use | Delivery trucks, engine swaps, small gensets | Heavy trucks, industrial, marine, gensets |
| Weight | ~745 lb | ~1,100 lb |
For a deep-dive breakdown of parts compatibility, fuel economy and swap costs, read our full Cummins 4BT vs 6BT comparison guide.
Popular Cummins 6BT Parts Buyers Ask For
Based on our 2024–2026 order data, these are the most frequently requested items from global buyers searching for a Cummins 6BT parts supplier:
- Cummins 5.9 rebuild kit wholesale — complete overhaul kit including pistons, rings, gaskets, bearings
- Cummins 6BT crankshaft (forged steel) — for high-torque marine and heavy truck applications
- Cummins 6BT cylinder head assembly — 12V and 24V configurations
- Cummins 6BT turbocharger HX35 / HX40 — new and remanufactured
- Cummins 6BT injector & fuel pump — Bosch P7100 & VP44 replacements
- Dodge Ram Cummins 5.9 parts wholesale — for 1994–2002 & 2003–2007 platforms
- Cummins 6BT marine parts — heat exchangers, raw water pumps, marine gasket kits
Case Study: 500 Rebuild Kits Supplied to a Fleet Operator in Nigeria
Client: West African logistics company operating a 200-truck fleet.
Challenge: OEM Cummins parts were too expensive for their maintenance budget, and locally available aftermarket kits had a 6-8% early-failure rate.
Solution: Volgen Power supplied 500 complete Cummins 6BT overhaul kits (pistons, rings, bearings, gaskets, valve components) with pre-shipment CMM inspection reports on every batch.
Result: After 18 months of field service data, the failure rate dropped to 0.15%, and the client cut per-rebuild parts spend by 35%. They have since renewed their supply agreement for 2026.
FAQs.
What is the Cummins 6BT engine?
The Cummins 6BT (also known as 6BT5.9) is a 5.9-liter, inline 6-cylinder turbocharged diesel engine. It produces 160-300 HP and is widely used in trucks, construction equipment, generators and marine applications.
Are your Cummins 6BT parts OEM or aftermarket?
We supply OEM-quality aftermarket parts manufactured in our own ISO-certified factory. Our parts meet or exceed strict OEM specifications and come with a 12-month quality guarantee. We also source OEM-original parts for customers who specifically request them.
What is the MOQ for Cummins 6BT parts?
Our minimum order quantity is 1 piece for samples and 10-50 pieces for standard wholesale orders. Bulk orders of 100+ pieces receive significant volume discounts.
How do I order parts from Volgen Power?
Simply send us an inquiry with your required OEM part numbers and quantities. We will reply within 24 hours with a detailed Proforma Invoice including shipping options. Once payment is confirmed, we process and ship your order immediately.
Do you offer technical support for Cummins 6BT rebuilds?
Yes, our team of senior diesel engineers provides pre-sale consultation and after-sale technical support to ensure you get the exact right parts for your engine serial number. For step-by-step rebuild guidance, see our 2025 Cummins 6BT maintenance tips & OEM parts guide.
What is the difference between Cummins 4BT and 6BT engines?
The 4BT is a 3.9L 4-cylinder version (105-170 HP), while the 6BT is the 5.9L 6-cylinder version (160-300 HP). For a full technical comparison, read our Cummins 4BT vs 6BT comparison guide.
Contact Volgen Power Today
Stop risking your reputation on substandard parts. Partner with a true manufacturer and get a free quote today:
- ? Email: [email protected]
- ? WhatsApp: +86 188 2743 5225
- ? Website: www.volgenpower.com
Get factory-direct Cummins 6BT pricing today
Reply within 24 hours · 12-month warranty · Ships worldwide
? Send Inquiry ? Chat on WhatsAppVolgen Power — your trusted Cummins 6BT parts supplier for quality, competitive pricing and global service.
