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Engines and Components› Connecting Rods and Components

Manley Performance

Manley Mazda Speed SMZR 2.5L 5.9 H/T H Beam Connecting Rod Set - 4 cyl

$687.30 $672.02 Save $15.28

SKU: M004 15038-4

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Description

Part #: 15038-4

When it comes to H-Beam connecting rods, not all are created equal. Manley's H-Beam Series stands out as a superior choice, offering exceptional quality at an economical price point. These connecting rods are meticulously crafted to meet the same high-quality standards as our renowned Sportsmaster (R) and Pro Series rods.

Center To Center Length: 5.976 in. - Big End Bore: 2.166 in. - Pin Bore: 0.8868 in. (22.5mm Pin) - 3/8" ARP 2000 Bolts - Approx. HP Rating: 750

MIA's Description

Manley's H-Tuff connecting rods are manufactured from 4340 forgings to ensure the highest strength possible. These rods are heat treated, stress relieved, shot peened and 100% magnafluxed. H-Tuff delivers a stronger rod with greater safety margin to handle elevated boost and higher power levels for a modest price premium over standard H-Beams. The H-Tuff design incorporates wider beam and increased cross-sectional thickness in critical areas along with a ribbed pin surround.

Fitment

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Specifications

BrandManley Performance
Part NumberM004 15038-4

Buy with Confidence

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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