

The 614150046 Retainer of Oil Pan is a precision‑engineered component that ensures a secure, vibration‑proof mounting of the oil pan to the engine block, preventing oil leaks and protecting the lubrication system from contamination. Manufactured from high‑strength steel with a corrosion‑resistant coating, this retainer delivers exceptional durability and consistent clamping force, even under extreme thermal cycling and engine vibration. As a critical part of genuine Howo/Sitrak truck parts, the 614150046 is produced to exact OEM specifications, guaranteeing a perfect fit and superior performance in HOWO, Sitrak, and Shacman heavy‑duty diesel engines. Whether you are replacing a damaged retainer during an oil pan service or performing a complete engine overhaul, this component delivers the strength, reliability, and sealing integrity required to maintain oil pressure, prevent leaks, and extend engine life, minimizing downtime and operational costs.
The 614150046 is not a simple stamped bracket; it is a precision‑formed retainer designed to distribute clamping load evenly across the oil pan flange, ensuring a leak‑free seal with the engine block. Manufactured from high‑grade cold‑rolled steel with a zinc‑nickel plating, this retainer resists corrosion from oil, road salt, and moisture, maintaining its structural integrity over the life of the engine. The retainer’s geometry is engineered to provide the correct clamping force without distorting the oil pan, and its precisely located mounting holes align with the OEM bolt pattern for a perfect fit.
The retainer features reinforced ribs that increase rigidity and prevent flexing under high torque loads. The surface finish is controlled to minimize friction during tightening, ensuring accurate torque readings. Every 614150046 is inspected for dimensional accuracy, including hole spacing, thickness, and overall flatness, guaranteeing that it meets the strictest OEM standards. This attention to detail ensures that the oil pan remains securely attached, preventing oil leaks that can lead to engine damage and environmental contamination.
Corrosion Resistance – The zinc‑nickel coating of the 614150046 provides superior protection against rust and chemical attack, ensuring long‑term durability.
Precision Fit – The retainer’s mounting holes and flange profile match the OEM oil pan and block exactly, eliminating fitment issues.
Heat Resistance – The retainer maintains its strength and clamping force at engine operating temperatures up to 150°C.
Thermal Stability – The steel construction ensures dimensional stability across a wide temperature range, preventing loosening due to thermal expansion.
The 614150046 retainer is dimensionally identical to the original equipment retainer used in HOWO, Sitrak, and Shacman heavy‑duty engines. It is specifically designed for the WP10, WP12, and WP13 engine families, as well as the WD615 series. The retainer’s bolt hole spacing, overall dimensions, and thickness match the original component exactly, ensuring a seamless replacement that requires no adaptation. By choosing this genuine part, you avoid the risks associated with aftermarket retainers that may have incorrect hole spacing, inferior material, or poor surface finish, which can lead to uneven clamping, oil pan distortion, and persistent oil leaks.
The 614150046 has been validated through extensive engine testing and fleet operations, confirming its ability to maintain a secure oil pan seal over thousands of operating hours. Fleets that have standardized on this retainer report a significant reduction in oil pan leaks and associated maintenance costs. Its robust construction ensures dependable service life, even in the most demanding operating conditions.
Proper installation of the 614150046 is essential to achieve a leak‑free oil pan seal and to avoid damaging the retainer or the oil pan. Begin by thoroughly cleaning the oil pan flange and the engine block mating surface to remove all old gasket material, oil, and debris. Inspect the retainer for any signs of deformation or corrosion; if any damage is found, replace it. Position the new retainer over the oil pan mounting studs or bolts, ensuring that it is correctly oriented. Install the oil pan with a new gasket and hand‑tighten the bolts.
Using a calibrated torque wrench, tighten the bolts to the manufacturer’s specified torque, typically 20–25 Nm for M8 fasteners, in a crisscross pattern to ensure even clamping pressure. Do not over‑torque, as this can distort the retainer or damage the oil pan. After installation, run the engine and check for any oil seepage. Re‑tighten fasteners after the first heat cycle if necessary. Regular inspection of the 614150046 during routine maintenance is recommended—look for any signs of cracking or loosening. With proper installation, this retainer will provide reliable oil pan security for the life of the engine.
Each 614150046 retainer is manufactured in an ISO 9001‑certified facility under strict quality control. The steel material is sourced from approved suppliers and tested for tensile strength and chemical composition. The forming process is carefully controlled to ensure accurate dimensions and consistent thickness. After forming, every retainer is 100% visually inspected for surface defects, and critical dimensions—including hole spacing, width, and length—are verified using precision gauges. Random samples from each batch are subjected to a corrosion resistance test (salt spray) and a clamping force test to confirm performance.
The retainer is also tested for hardness and flatness to ensure it meets OEM specifications. This comprehensive quality assurance guarantees that every 614150046 delivers the same reliable performance as the original OEM component, giving you full confidence in your repair.
Technicians and fleet maintenance teams consistently choose the 614150046 because it eliminates oil pan leak issues and ensures a secure, long‑lasting seal. The retainer’s robust construction and precise fit mean that it can be installed quickly and with confidence, saving valuable workshop time. Many workshops have reported a significant reduction in oil pan leak warranty claims after switching to this genuine OEM retainer.
Moreover, the 614150046 is available in clear packaging that protects the component from damage and contamination. Its part number and application data are clearly displayed, simplifying parts identification and ordering. When you choose this retainer, you are selecting a component that has been engineered and tested to the highest standards, offering the perfect balance of strength, durability, and value.
In summary, the 614150046 Retainer of Oil Pan is a precision‑engineered component that provides reliable, leak‑free oil pan sealing for HOWO, Sitrak, and Shacman engines. Its high‑strength steel construction, exact OEM fitment, and corrosion‑resistant coating ensure that it withstands the demands of heavy‑duty diesel operation. By investing in this genuine replacement part, you are protecting your engine from oil loss, contamination, and potential damage, extending its service life and reducing overall maintenance costs.
Don’t compromise on oil pan integrity – choose the 614150046 for your next oil pan service or engine overhaul. With its proven track record and widespread acceptance among professionals, this retainer is the smart choice for anyone who values reliability, efficiency, and peace of mind. Keep your oil contained and your engine running at its best with the 614150046 – the definitive choice for HOWO and Sitrak professionals.