1262757 Turbine Housing BTL8503 CAT 3508B Turbocharger

This aftermarket 1262757 turbine housing is a replacement part for BTL8503 turbochargers, listed for CAT 3508B and CAT 3516B applications. Verify your specific engine code and OEM reference numbers, such as 4411220122, before ordering to ensure the correct casting is selected for your unit.

Key Specifications

• Part Number: 1262757
• Product Type: Turbine Housing
• Turbo Model: BTL8503
• Application Clues: CAT 3508B, CAT 3516B
• OEM References: 4411220122, 0R7128 TH, 10R0430 TH
• Packing: N/A
• Gross Weight: 0 kg
• Image Availability: Yes

This turbine housing features a grey cast metal construction with a rectangular flange and four bolt holes. The main circular opening is machined with a polished inner surface, while the outer housing displays a raised rectangular casting pad. These visible features help buyers identify the correct casting variant when reference checking OEM numbers such as 4411220122 or 0R7128 TH against their existing unit.

Application & Compatibility

Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:

• Caterpillar > CAT > CAT GENERATOR SET INDUSTRIAL > CAT 3508B
• Caterpillar > CAT > CAT TRUCK 793 HD > CAT 3516B
• Caterpillar > CAT > CAT 3516

This turbine housing is listed for reference applications including CAT 3508B generator sets, CAT 3516B trucks, and CAT 3516 engines. Buyers should verify the specific engine code and production year before ordering, as multiple variants may exist for the BTL8503 model. Cross-check the OEM reference numbers on your existing unit against the supplied list, such as 4411220122 or 0R7128 TH, to confirm the correct casting. If the original part number is unclear, provide the casting number from the old housing to technical support for fitment verification.

Technical Notes

The BTL8503 turbocharger model is associated with 31 OEM reference numbers, including 4411220122, 0R7128 TH, and 10R0430 TH. Because multiple casting variants exist for this turbo model, buyers should verify the specific OEM reference number on their existing unit before ordering. If the original part number is unclear or if multiple variants are listed for the same engine, send the casting number from the old housing to technical support. This helps confirm the correct turbine housing for your CAT 3508B or 3516B application.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing and worldwide shipping for the 1262757 turbine housing. Technical fitment support is available to help verify the correct casting variant for CAT 3508B or 3516B applications. When inquiring, provide the specific OEM reference number, such as 4411220122 or 0R7128 TH, along with your engine code to ensure the correct part is selected. This service helps confirm fitment before ordering, reducing the risk of incorrect casting selection for your BTL8503 turbocharger application.