What are the alternatives to the SUPCO SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting Torque?

SUPCO SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting Torque competes with other Tools & Maintenance products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full Tools & Maintenance category for alternatives.

Supco

SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting Torque

Name: SUPCO SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting Torque
Brand: Supco
SKU: B0002YTLFE
Price: 13.95 USD
Availability: InStock

By SpecPicks Editorial · Verified 2026-08-21

$13.95

Buy on Amazon — $13.95 Compare to similar tools & maintenance

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.

Bottom line: The SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting Torque is a niche pick — read recent reviews before buying in the tools & maintenance category, priced around $13.95. Read recent reviews carefully before committing.

Relay/CAPACITOR hard start kit 500% incr starting torque,increased compressor starting torque. Designed for use on permanent split CAPACITOR single phase a/c and heat pump systems. Multiple use includes: room air conditioner units, residential or commercial psc AC units.. the country of origin is china.

SpecPicks Verdict

SpecPicks classifies SUPCO SPP6 Relay/Capacitor Hard Start Kit with 500% Increase… as a niche pick — read recent reviews before buying in the tools & maintenance category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Supco's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for tools & maintenance of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Relay/capacitor hard start kit 500% incr starting torque
✓ Backed by Supco's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

Relay/capacitor hard start kit 500% incr starting torque
Increased compressor starting torque. Designed for use on permanent split capacitor single phase a/C and heat pump systems
The country of origin is china

Full Specifications

Brand	Sealed Unit Parts Co., Inc.
Model	SPP6
Shape	Round
Material	Copper
Item Shape	Round
Unit Count	1 Count
Part Number	SPP6
Material Type	Copper
Mounting Type	Panel Mount or Surface Mount
Item Type Name	Relay/Capacitor Hard Start Kit 500% Incr Starting Torque - 661389
Included Components	Electrical Replacement Parts^Electrical Replacement Parts^replacement-household-furnace-control-circuit-boards
Item Dimensions W x H	6.5"W x 7.25"H
Global Trade Identification Number	00687152197361

Ready to buy?

SUPCO SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting Torque is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.