Speedmaster®

Ford FE 390 427 428 Internal Balanced Fluid Damper Harmonic Balancer SFI 18.1

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US $164.60 US $164.62
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Single Points Earn 165 Points

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MPN PCE291.1074 UPC840136534891

Product Information

Overview

Using only three parts--a laser-welded sealed housing, an internal inertia ring, and highly viscous silicone fluid between the two--these SFI-approved Fluid dampers can control all crankshaft vibration, not just a limited frequency range. As a result, you get reduced wear on the main bearings and timing gear, more stable valvetrain operation, and less chance of crank failure.

Specs

Brand:Speedmaster
Part Number:PCE291.1074
Part Type:Harmonic Balancer
Engine Balance:Internal
SFI Rating:SFI 18.1
Degree Markings:Yes
Degree Marking Range:50 BTDC to 10 ATDC
Outside Diameter (in):7.250 in.
Bolt Pattern (in):3.00
Harmonic Balancer Material:Steel
Harmonic Balancer Construction:Fluid
Harmonic Balancer Finish:Black painted
Mounting Hardware Included:No
Quantity:Sold individually.
Notes:Additional timing/degree marks at 90, 180, and 270 degrees.

Description

This damper is internal balanced; the term internal balanced damper"refers to the lack of any built in weight or offset in the casting. When identifying your existing damper, (balancer) you must look on the backside."This is not"visible"if the damper is"mounted on the engine."If your damper has no offset in the casting or weight, then you have an internal, (neutral)"style damper. If you do see the offset in the casting or a weight, you have what is classified as an external damper. They are perfectly balanced, hence the term neutral.

Warranty Information

12-Month Limited Worldwide Warranty

Prop 65 Warning

This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Installation Guide

Our AI assistant generates a step-by-step guide for this product — covering installation, maintenance, and troubleshooting.

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This AI-generated guide is for general reference only and does not constitute official Speedmaster product documentation. Always verify fitment, torque specifications, and safety requirements before installation.