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Engines and Components Engine Covers, Pans and Dress-Up Components

MARCH PERFORMANCE

BBC Style Track Serp System W/ AC Black

$3,174.52 $2,443.67 Save $730.85

SKU: M05O 21255-08

In Stock
In Stock
Ships by Aug 28
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The March Performance 42-21255 is a Chevrolet Big Block Alternator and A/C Bracket Kit. It features a highly styled, one-piece alternator and A/C bracket for rigid support. A separate bracket allows for the option of power steering or no power steering.

This kit includes a 105 amp alternator, alternator pulley with fan and nose cover, a matching A/C compressor, and a cast aluminum water pump with hard-coated pulleys. It also comes with alternator and A/C brackets, a larger diameter crank pulley for better accessory drive, a belt tensioning tool, and all necessary mounting hardware.
Show original supplier description
BBC Style Track Serp System W/ AC Black

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandMARCH PERFORMANCE
Part NumberM05O 21255-08

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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