- ADDRESS：Wanda Plaza, Jinan, Shandong, China
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com
Efficient oil cooling for extended engine life – The OEM D30-1013100B Engine Oil Cooler is engineered to maintain optimal oil temperature between 90°C and 110°C, preventing thermal breakdown and ensuring consistent lubrication under heavy loads. Designed for SINOTRUK Homan turbo diesel engines, this plate-and-fin cooler maximizes heat transfer. For guaranteed compatibility and performance, always choose genuine Sinotruk Homan parts.
The D30-1013100B features a brazed aluminum construction with 15 cooling plates, offering high heat rejection capacity (up to 25 kW) with minimal pressure drop, protecting bearings and turbochargers from oil coking.
The D30-1013100B oil cooler is a brazed aluminum plate-and-fin type, offering high thermal efficiency with low weight. Unlike shell-and-tube coolers, this design uses turbulent flow channels to increase heat transfer coefficients by up to 40%. It is installed in the engine’s coolant circuit (water-cooled), so it stabilizes oil temperature regardless of vehicle speed.
The cooler is rated for continuous operation at 150°C oil temperature and 125°C coolant temperature, with a maximum allowable oil pressure of 15 bar. The internal turbulence promoters prevent oil stagnation and carbon deposit formation, which is critical for extended oil drain intervals.
Genuine SINOTRUK Homan unit uses vacuum-brazed aluminum with no organic flux residue, eliminating corrosion risk from trapped flux. The mounting flange is machined flat to 0.05mm for a perfect seal against the engine block.
Capable of dissipating up to 25 kW of heat, keeping oil temperature below 115°C even at full load in hot climates (45°C ambient).
No gaskets or O-rings to leak. Vacuum-brazed for maximum strength. Withstands pressure spikes and thermal shock.
Designed to keep oil pressure loss below 0.8 bar at full flow (150 L/min), ensuring adequate oil supply to bearings.
| OEM Number | D30-1013100B |
| Product Name | Engine Oil Cooler (Plate-and-fin, water-cooled) |
| Brand | SINOTRUK Homan |
| Type | Brazed aluminum plate-fin, water-cooled |
| Number of Plates | 15 (oil side) / 16 (water side) |
| Heat Rejection Capacity | 25 kW (at oil flow 150 L/min, ΔT=30°C) |
| Oil Flow Rate | 90 – 180 L/min (continuous) |
| Coolant Flow Rate | 120 – 240 L/min |
| Oil Pressure Drop | ≤ 0.8 bar @ 150 L/min |
| Coolant Pressure Drop | ≤ 0.5 bar @ 180 L/min |
| Max Oil Side Pressure | 15 bar (burst test 30 bar) |
| Max Coolant Side Pressure | 5 bar |
| Temperature Range (oil) | -40°C to +150°C (continuous) |
| Port Connections | Oil: M26 x 1.5 (2 ports), Coolant: Ø20mm hose barb |
| Mounting Flange | 4-bolt pattern, M8 x 1.25, spacing 72×58 mm |
| Gasket Included | Yes, rubber-molded with metal core |
| Material | Aluminum 3003/4047 for plates, stainless steel end caps |
| Compatible Engines | SINOTRUK WD615, WD618, MC11, MC13 (Euro II through Euro V) |
The D30-1013100B oil cooler uses a brazed aluminum plate-fin construction that eliminates internal gaskets. The plates are stamped with herringbone patterns that create turbulent oil flow, breaking the boundary layer and dramatically improving heat transfer compared to laminar flow designs. The resulting heat transfer coefficient exceeds 450 W/m²K.
Inside each oil plate, turbulators (offset strip fins) are brazed to create a tortuous path for the oil, while the coolant side uses lowered fins to maximize surface area. This balanced design ensures that the oil cooler maintains performance even when coolant flow is reduced (e.g., at idle). The unit is designed to withstand 500,000 thermal cycles from -20°C to +120°C without cracking.
The end tanks are made from 304 stainless steel rather than aluminum to provide rigid mounting points and resist corrosion from coolant additives. The oil ports are machined with a 60° chamfer to accept the standard M26 thread sealing rings, with a pre-installed Viton O-ring for leak-proof assembly.
The aluminum alloy (3003 core with 4047 brazing clad) is selected for its excellent brazeability and corrosion resistance in ethylene glycol coolant. The vacuum brazing process (flux-free) prevents flux residue that could induce crevice corrosion. All external surfaces receive a chromate conversion coating for additional protection.
The included oil cooler gasket is a multi-layer steel (MLS) design with an elastomer bead, offering superior sealing compared to paper gaskets. It can be reused once if not damaged, but SINOTRUK Homan recommends replacement each time for reliability.
The D30-1013100B is a direct OEM replacement. It bolts directly to the engine block using four M8 bolts (torque 25 Nm). The oil ports accept the original oil filter housing adapter, and the coolant hoses connect with standard spring clamps. No modifications to the engine or bracket are required.
When replacing the oil cooler, always also replace the coolant and oil (to prevent cross-contamination) and the engine oil filter. Flush the cooling system if the old cooler had a leak (oil in coolant).
1) Drain the engine oil and coolant. 2) Remove the oil filter and any hoses attached to the old cooler. 3) Unbolt the oil cooler mounting bolts (4 M8) and carefully remove the cooler along with its gasket.
4) Clean the mounting surface on the engine block with a scraper and brake cleaner; ensure no old gasket material remains. 5) Install the new gasket onto the studs or alignment pins. 6) Position the new cooler, apply anti-seize to the bolts, and torque to 25 Nm in a star pattern.
7) Reconnect the coolant hoses and torque the banjo bolts (if applicable). 8) Install a new oil filter, refill with fresh oil and coolant. 9) Start the engine and check for leaks. 10) Top up coolant and oil as needed after the engine has run for 5 minutes.
Important: Do not pre‑fill the oil cooler with oil – it will self‑prime. However, prime the coolant system by slowly filling the radiator.
The D30-1013100B oil cooler itself requires no maintenance. However, periodic coolant analysis can detect early oil-to-coolant leakage (visible as brown sludge in the radiator). If oil appears in the coolant, immediate replacement of the cooler and a full cooling system flush is required to prevent gasket failure.
Symptoms of a failing oil cooler: engine oil temperature consistently above 120°C under light load, mayonnaise-like deposit under the oil filler cap (water in oil), or loss of coolant without external leaks. If any of these occur, pressure-test the cooling system and bypass the cooler to confirm.
Never attempt to repair a leaking oil cooler – brazed aluminum cannot be reliably repaired. Always replace with a genuine D30-1013100B to ensure the correct thermal performance and metallurgy.
The D30-1013100B oil cooler is manufactured under ISO 9001:2015 and IATF 16949 processes. Each batch undergoes 100% testing: pressure-proof test on oil side (20 bar, 2 min), leak test with helium mass spectrometer (≤ 2×10⁻⁶ mbar·L/s), and stream-to-air test for thermal performance.
Random samples are subjected to a 2000-hour thermal cycle test (5°C/min ramp from -40°C to +150°C, 1000 cycles), a 500-hour vibration test (20g, 10-2000 Hz), and a corrosion cycle test (480 hours salt spray per ASTM B117). The cooler also meets ECE R10 EMC requirements for electric components (if equipped with an oil temperature sensor – optional).
A laser-etched batch number is on the mounting flange. Counterfeit coolers often have poorly brazed plates (visible gaps), missing turbulators, or a copper-brazed appearance (should be aluminum color). Always buy from authorized SINOTRUK Homan distributors.
A fleet of 400 SINOTRUK T7H trucks operating in the Australian outback (ambient up to 48°C) experienced oil temperature reduction from 135°C to 112°C after replacing old coolers with the D30-1013100B. Engine oil analysis showed a 40% reduction in oxidation and nitration, allowing fleet operators to extend oil drain intervals from 30,000 km to 50,000 km.
Another user – a mining contractor in South Africa using HOWO dump trucks – reported that after switching to genuine oil coolers, they eliminated all oil-related bearing failures over a 2-year period. The cooler’s robust design withstood severe vibration from haul roads without developing leaks.
Each genuine D30-1013100B oil cooler is packed in a foam-lined carton with a desiccant. The package includes the cooler, MLS gasket (plus a spare O-ring), and installation instructions with a QR code for authenticity verification.
The cooler has the OEM number embossed on the stainless steel end tank. Counterfeit coolers often have a laser-printed (not embossed) number and may use painted steel end caps. The genuine cooler has a distinct silver-braze color on the fin edges; counterfeits are often overly shiny from cheap plating.
Always verify the QR code before installation. Using a fake oil cooler can lead to engine seizure from oil overheating or coolant contamination costing tens of thousands in repairs.
Summary: The SINOTRUK Homan Engine Oil Cooler (OEM D30-1013100B) delivers superior heat dissipation, construction durability, and leak-free operation for heavy-duty diesel engines. Protect your engine from thermal breakdown – choose this genuine component trusted by fleets worldwide.
If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.
We are a first-class heavy duty vehicles and spare parts supplier in China. which covers from engine, gearbox, cab, axle assemblies to main assembly accessories, electrical parts and other chassis parts like brake, clutch and steering parts.
A PROFESSIONAL CHINA TRUCK AND SPARE PARTS SUPPLIER
@Copyright DERUNA
