Pioneer Cables 871021 Automatic Transmission Flexplate

Pioneer Cables 871021 Flexplate Overview

Pioneer Cables 871021 is an automatic transmission flexplate built to restore OEM-level performance in Ford applications. It is made from high-grade steel, formed to original dimensions, and precision balanced to factory specifications for consistent operation.

This SFI approved flexplate includes a 29.1 certification sticker and is built with automated welding for added strength and repeatability. It is a direct-fit replacement for select Ford F-150, Crown Victoria, Mustang, Expedition, E-150, and E-250 applications with the correct 6-bolt crank pattern.

Key Features

• Part number 871021
• Automatic transmission flexplate for Ford applications
• High-grade steel construction
• Built to original dimensions for OE-style fitment
• Automated welding process for consistent strength
• Precision balanced to factory specs
• 164 teeth
• 14.234-inch outside diameter
• 1.186-inch diameter
• 12-14 pitch flywheels
• SFI approved with 29.1 certification
• SFI certification sticker included

Detailed Description

Pioneer Cables 871021 flexplate is engineered for automatic transmission service where correct tooth count, balance, and crank pattern are critical. With 164 teeth and a 14.234-inch outside diameter, it is built to match the original fit and function required in select Ford truck, van, and passenger car applications. The 6-bolt crank pattern and SFI certification make it a strong match for performance-minded and service replacement needs alike.

Compatible With 2001-2003 Ford F-150, 2003-2007 Ford E-150, 2003-2007 Ford E-250, 2001-2002 Ford E-150 Econoline, 2001-2002 Ford Expedition, 2002-2003 Ford Mustang, 2002-2004 Ford Crown Victoria, 2004 Ford Expedition, 2006-2008 Ford F-150, 2007-2010 Ford Crown Victoria, 2008-2012 Ford E-250, and 2009-2010 Ford F-150. This part cross-references 871021 for the same application.

Common Problems This Part Can Address

• Cracked or warped flexplate surfaces
• Damaged ring gear teeth
• Vibration caused by imbalance
• Noise from flexplate fatigue or failure
• Incorrect fitment from worn or mismatched replacement parts

Installation Notes and Tips

Verify the 6-bolt crank pattern, 164-tooth count, and 12-14 pitch flywheel specification before installation. Confirm transmission and engine compatibility for your exact Ford application, especially on Triton (Romeo) engine listings. Inspect the starter engagement area, crank flange, and surrounding components for wear before installing the new flexplate.

Quality Assurance

This Pioneer Cables flexplate is manufactured from high-grade steel, welded for consistency, and balanced to factory specifications. It is SFI approved and includes the SFI certification sticker for applications that require documented compliance.