Products Description
Volvo D12D Engine – Product Description
The Volvo D12D is a heavy-duty, 6-cylinder diesel engine designed for long-haul trucks, construction equipment, and industrial applications. Renowned for its durability, fuel efficiency, and advanced emissions technology, the D12D is a key powerplant in Volvo’s commercial vehicle lineup.
Key Features & Specifications
1. Engine Overview
- Manufacturer: Volvo Trucks
- Model: D12D
- Engine Type: 6-cylinder, in-line, 4-stroke diesel
- Displacement: 12.1 liters (12,130 cc)
- Aspiration: Turbocharged & intercooled
- Bore x Stroke: 131 mm × 150 mm
- Compression Ratio: 17.3:1
- Fuel System: High-pressure Unit Pump System (UPS) / Common Rail (D12C/D later versions)
2. Performance & Power Output
- Horsepower Range: 340–460 HP (254–343 kW)
- Peak Torque: 1,550–2,150 Nm (1,143–1,586 lb-ft)
- Max RPM: 1,800–2,200 (depending on application)
- Emissions Compliance: Euro III / Euro IV (with EGR & SCR)
3. Key Technologies
✔ Volvo EGR (Exhaust Gas Recirculation) – Reduces NOx emissions (Euro IV).
✔ Advanced Turbocharging – Improves power and fuel efficiency.
✔ Volvo Engine Management System (VEMS) – Optimizes performance & diagnostics.
✔ Robust Construction – Reinforced cylinder block & crankshaft for longevity.
4. Applications
- Long-Haul & Regional Trucks (Volvo FH, FM, FMX)
- Construction & Mining Equipment (Articulated haulers, loaders)
- Buses & Coaches (Volvo 9700, B12)
- Marine & Industrial Power Units
5. Emissions & Aftertreatment (Depending on Model Year)
- Euro III: Basic EGR system
- Euro IV: EGR + SCR (Selective Catalytic Reduction)
- Optional DPF (Diesel Particulate Filter) for cleaner operation
6. Maintenance & Reliability
✅ Extended Oil Change Intervals – Up to 100,000 km (60,000 miles).
✅ Volvo VED (Vehicle Electronic Diagnostics) – Advanced troubleshooting.
✅ Global Service Network – OEM parts and expert support.
Why Choose the Volvo D12D?
✔ Proven Durability – Built for high-mileage operation.
✔ Fuel-Efficient – Optimized for cost-effective transport.
✔ Strong Torque Output – Ideal for heavy loads and hilly terrain.
✔ Lower Emissions – Meets Euro III/IV standards.
Conclusion
The Volvo D12D is a reliable, high-torque engine trusted in heavy transport and construction. While newer engines like the D13 have replaced it, the D12D remains popular due to its simplicity, durability, and lower maintenance costs.
Need specs for a specific model year or application? Let me know!

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Company Profile
Hebei Keluo Construction Machinery Co., Ltd
Certainly! Here is marketing copy for the engines available in your company across pre-sales, after-sales, warranty, maintenance, and other aspects:

Pre-Sales:
Power Up Your Performance with Our Engine Selection!
Explore a diverse range of top-tier engines from renowned brands like Deutz, Cummins, Kubota, Volvo, Yanmar, Isuzu, Perkins, Weichai, and more. Enhance your operations with our reliable and efficient engine solutions tailored to meet your needs. Contact us today to find the perfect powerhouse for your application!
After-Sales Support:
Unmatched Service Every Step of the Way
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Ensure optimal performance and longevity with our tailored maintenance services. Our team of skilled technicians is equipped to handle all your servicing needs, from routine checks to comprehensive overhauls. Keep your engine in peak condition with our proactive maintenance solutions, designed to maximize uptime and minimize downtime.
Other Aspects:
- Performance Enhancement: Boost your operations with engines designed for superior performance and efficiency.
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Feel free to customize this content further to align with your company's specific messaging and branding strategies.
Certifications
FAQ
Q1: What is your delivery time?
A: The delivery time is within 15 working days.
Q2: What is the payment term?
A: Normally we accept 30% deposit by TT for production, 70% balance by TT before shipping.
Q3: What color can I choose?
A: We can customize the color according to your color number.
Q4: Can I see the production progress after order?
A: Yes, during production, we can make video call and we could take photos/videos for your reference.
Q5: What kind of service can I get from you if I buy? How can I get parts?
A: We have 1 year warranty for each machine.Within 1 year warranty, if any parts failure caused by quality issues, the new parts would be sent to you free of charge within 5 working days. We have professional after sales department to support for you at any time.