OEM-Style High-Pressure Fuel Pump (Part Nos. 12658270 / 12642726) for 2014–2015 Cadillac CTS and XTS with 3.6L V6 Engine

Description

High Pressure Fuel Pump 12658270 12642726 – Replacement for Cadillac CTS XTS 3.6L 2014–2015

Aftermarket high pressure fuel pump engineered for precise fuel rail pressure delivery and reliable direct injection system performance for Cadillac CTS and XTS 3.6L applications. Precision-manufactured components ensure drop-in compatibility with correct fitment.

Technical Specifications

• Part Numbers: 12658270, 12642726, 530-8365, HM10111, HPM1004, GDP111, 12666365
• Condition: New, aftermarket replacement
• Function: High-pressure fuel pressurization and delivery to the direct injection fuel rail, maintaining correct injection pressure for efficient combustion, smooth power delivery, and reliable engine operation

Equipment Compatibility

Note: Compatibility is provided for reference. Please verify against your part number before ordering.

Fits the Following Models:

• Cadillac CTS 3.6L – 2014 to 2015
• Cadillac XTS 3.6L – 2014 to 2015

Why Choose This High Pressure Fuel Pump

The high pressure fuel pump is a critical component of your Cadillac’s direct injection system — it pressurizes fuel to the precise levels required by the direct injectors to deliver clean, efficient combustion at every engine speed and load. A failing high pressure pump causes rough idle, hesitation, misfires, reduced power, poor fuel economy, and hard starting, leading to costly repairs and unreliable performance. This replacement unit delivers:

• Consistent fuel rail pressure – Engineered to maintain correct high-pressure output and flow rate for your Cadillac CTS/XTS 3.6L direct injection system
• Exact-fit installation – Direct replacement with correct mounting configuration, fuel line interface, and cam follower compatibility
• Durable construction – Built to withstand the high-pressure demands and thermal cycling of direct injection fuel system operation
• Cost-effective solution – Aftermarket quality at a fraction of dealer pricing

Package Contents

• 1 × High Pressure Fuel Pump 12658270

Essential for Cadillac CTS and XTS direct injection fuel system maintenance and high pressure pump replacement. Keep your 3.6L engine delivering smooth power, efficient combustion, and reliable performance in every drive.

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