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Proform 66509 100% New OEM Replacement Unit

Vendor: Proform
SKU: BCHW_66509
Availability: 1 In Stock
Product Type: Engine Harmonic Balancer
$109.00 USD
$102.00
$109.00 USD
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Description
Description
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Fits Chevy small and big block engines. These are brand-new OE replacement harmonic balancers. Affordable pricing eliminates the need to clean your old stock balancer. Enhance your balancer by adding the patented balancer covers.


Specifications:

Feature/Benefit Fits Chevy small and big block engines.
RPM Limit 6000 RPM
Thickness 1 5/8 inch
Applications Chevy Small Block 350 Engines 1955 to 1986
Category Harmonic Balancer
Color Natural Finish
Diameter 6 3/4-in.
Finish Natural
Internally/Externally Balanced Internal
Material Nodular Iron
Description_ABR Harm. Damper
Description_SHO Harmonic Balancer
Description_INV Harmonic Balancer
Description_INV SB Chevy 350
Description_DEF Engine Harmonic Balancer
Description_ASC Engine Harmonic Balancer
Description_ASC Fits Small Block Chevy 350 Engine
Description_ASC 6-3/4 In. Diameter
Description_LAB Engine Harmonic Balancer
Description_LAB Fits Small Block Chevy 350 Engine
Description_LAB 6-3/4 In. Diameter
Description_DES Engine Harmonic Balancer
Description_DES Fits Small Block Chevy 350 Engine
Description_DES 6-3/4 In. Diameter
Description_EXT Engine Harmonic Balancer
Description_EXT Fits Small Block Chevy 350 Internally Balanced Engines with a 6-3/4 Inch Balancer
Description_EXT Non-SFI Approved
Description_EXT Made From Nodular Iron and Features a Natural Finish
Description_EXT Includes Degree Markings
Description_EXT 100% New OEM Replacement Unit
Description_MKT Fits Chevy small and big block engines. These are brand-new OE replacement harmonic balancers. Affordable pricing eliminates the need to clean your old stock balancer. Enhance your balancer by adding the patented balancer covers.
Vehicle Fitment
Vehicle Fitment
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Shipping
Shipping
x

SHIPPING & DELIVERY INFORMATION

Free Shipping

  • Eligibility: Orders over $99 in the USA & Canada.
  • Exceptions: Oversized or heavy items may incur extra fees (we’ll notify you before shipping).
  • Non-Eligible Areas: Vancouver Island, Yukon, NWT, Nunavut, Alaska, Hawaii, Puerto Rico & other U.S. territories.

Fast Shipping

  • Processing: Orders placed before 2 PM usually ship the same day.
  • Delivery Time: 2–5 business days via Purolator, FedEx, or Loomis Express.
  • Note: Delivery may take longer for distant warehouses or inter-warehouse transfers.

Shipping Limitations

  • No P.O. Boxes: Please provide a physical address.
  • Remote Areas: Free shipping excludes remote regions.

Special Orders & Backorders

  • May incur additional handling fees (discussed before shipping).
  • You may cancel if costs are too high for a full refund.

Warranty

  • For internal damage or missing parts, contact the manufacturer directly for faster service.
  • After 30 days, contact the manufacturer first — if unresolved, our team will assist.

Oversized Items

  • Shipped via LTL Freight (items over 150 lbs or large dimensions).
  • We’ll confirm any added costs before shipping.
  • Examples: Large Fridges, Oversize Toolbox or Tanks, Drop in Bed liners, Wheel to Wheel Step bar & Running Boards, Large Roof Cargo Box, Heavy Bumpers, RV Doors, Oversize, Roof Tent, Large gas tank, Oversize Grille Guards, Fifth Wheel Hitch, Sofa , Trailer Axle.
  • Special Handling Fees: Items like batteries may incur additional shipping fees.

Returns & Cancellations

In-Stock Items

  • Cancel before shipment; once shipped, standard return policy applies.
  • 20% restocking fee, excluding oversize item. Both way shipping is customer responsibility under store error.

Backorders / Special Orders

  • 5% restocking fee applies if canceled within 30 days.
  • Non-cancellable once shipped from the manufacturer.
  • Refused Deliveries: Refund minus shipping & restocking fees (excludes special orders).
  • Payment Disputes: Chargebacks do not cancel orders — please contact us directly.

Core Fees

  • Not included in the purchase price.
  • Refundable upon return of the old part in usable condition.

If you have any questions or need assistance, please reach out to us at 800.292.4173 or support@mytruckpoint.ca.

Why Us
Why Us
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Why Choose MyTruckPoint?

When it comes to your truck, compromise is not an option. At MyTruckPoint, we deliver the quality, speed, and trust that professionals across Canada depend on every day.

🇨🇦 Trusted Across Canada for 10+ Years

A decade of proven reliability serving truck owners, fleets, and businesses nationwide. We’ve built our reputation by delivering consistent quality and dependable service.

📦 100,000+ Orders Delivered

Over one hundred thousand successful orders — every one backed by accuracy, speed, and customer satisfaction you can count on.

✅ Authorized Dealer of Leading Brands

No knock-offs. No compromises. Only genuine parts from top-tier brands, ensuring performance, safety, and long-term value.

💪 Built for Performance & Durability

Our parts are selected to handle real-world demands — tough jobs, long hauls, and harsh conditions. Because your truck deserves the best.

💰 Competitive Pricing Without Cutting Corners

Premium quality doesn’t have to mean premium prices. We deliver exceptional value so you get more for every dollar spent.

⚡ Fast, Reliable Shipping

Downtime costs money. That’s why we process orders quickly and deliver efficiently — so you can get back on the road faster.

🧠 Expert Support You Can Rely On

Not sure what you need? Our experienced team is here to guide you with honest advice and the right solutions — every time.

🤝 Customer-First Commitment

We stand behind every order. Your satisfaction isn’t optional — it’s our priority.

MyTruckPoint — Trusted by Thousands. Built for the Road.

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