3803807 H1C Turbocharger Replacement for ONAN L634T
Aftermarket 3803807 H1C turbocharger for ONAN L634T applications. Verify part number, engine, and OEM reference numbers before ordering. B2B volume pricing available.
Orders without stock ship approximately 60 days after ordering. Estimated ship date if ordered today: .
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1270313-02 3521525 3521536This aftermarket 3803807 H1C turbocharger is a replacement unit designed for ONAN L634T engine applications, including GMC P4500 step-van chassis and ONAN generator sets. It serves as an aftermarket replacement reference for OEM numbers 1270313-02, 3521525, and 3521536, supporting B2B buyers who require verified fitment for commercial and industrial power systems.
Key Specifications
- Part Number: 3803807
- Product Type: Turbocharger
- Turbo Model: H1C
- Packing Dimensions: 21 x 23 x 26 cm
- Gross Weight: 14 kg
- OEM Reference Numbers: 1270313-02, 3521525, 3521536
- Application Clues: ONAN L634T engine, GMC P4500 step-van chassis, ONAN DL6T generator sets
Verify these specifications against your existing unit and engine documentation before ordering.
Application & Compatibility
Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:
- GMC > P4500 > P4500 Truck > step-van chassis > ONAN L634T
- ONAN > DL6T, 32 kW > 40 kVA > 40 kVA Generator set > ONAN L634T
This H1C turbocharger is listed for ONAN L634T engine applications, including GMC P4500 step-van chassis and ONAN DL6T generator sets. It is associated with OEM reference numbers 1270313-02, 3521525, and 3521536. Buyers should verify these references against their specific engine documentation and existing turbo configuration. Confirm part number 3803807, engine code, and vehicle application before ordering to ensure proper replacement application.
Technical Notes
The H1C turbocharger is a fixed-geometry unit. Verify the turbine housing flange bolt pattern and compressor outlet diameter against your existing setup. Confirm that the exhaust downpipe and intercooler pipe connections match the physical dimensions of the 3803807 unit. Check the dump valve or blow-off valve pressure settings to ensure they align with the H1C configuration. These verification steps help confirm stable operation and proper installation for ONAN L634T applications.
B2B Supply
LeadTurbo supports B2B buyers with volume pricing and worldwide shipping for the 3803807 H1C turbocharger. Our technical fitment team assists with verifying OEM reference numbers 1270313-02, 3521525, and 3521536 against your ONAN L634T engine documentation. For fleet or distributor orders, confirm packing dimensions (21 x 23 x 26 cm) and gross weight (14 kg) to streamline logistics. Contact us for pre-shipment inspection details and technical support to ensure the replacement unit matches your specific application requirements.
For fleet and generator maintenance teams, accurate stock planning relies on matching the 3803807 H1C turbocharger against your specific ONAN L634T engine documentation. Confirm that the physical dimensions of the packing (21 x 23 x 26 cm) and the 14 kg gross weight align with your warehouse logistics and handling protocols. Cross-check the OEM reference numbers 1270313-02, 3521525, and 3521536 to ensure the replacement unit matches your current installation. LeadTurbo provides technical fitment support to help verify these details before shipment, ensuring your B2B order meets the specific requirements of your GMC P4500 or ONAN generator application.
Product FAQ
P4500 and other product, brand and model names are the property of their respective owners and are used for reference and application-lookup only. LeadTurbo is not affiliated with or endorsed by P4500.
Compatibility Verify part number 3803807, engine code ONAN L634T, vehicle application, production year, and OEM reference numbers 1270313-02, 3521525, or 3521536 before ordering. Confirm turbo configuration and installation requirements with your technical team.
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Frequently Asked Questions
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Complete Turbo Units
Complete turbo units designed for rigorous heavy-duty use where OEM units may fall short.
CHRA / Core Assemblies
Brand-new compatible CHRA cores — like-new performance at a fraction of replacement cost.
Turbine Wheels & Shafts
Precision-balanced turbine shafts engineered from inside out for superior durability.
Turbine Housings
Silicon-molybdenum (Si-Mo) nodular cast iron — engineered for extreme heat resistance.
Compressor Housings
OEM-matched geometry and surface finish — advanced casting and machining for perfect fitment.
Bearing Housings
Rock-solid platform engineered for high-output rebuilds — the foundation for performance.
Compressor Wheels
Aluminum, stainless steel, or titanium alloys — precision machined for superior responsiveness.
