Copeland 998-0661-52 Valve Plate Kit

The Copeland 998-0661-52 Valve Plate Kit is the OEM rebuild kit for the 4RA-20HP, 4RE, 6RA-630HP, 6RB, 6RE, and 6RN model Copelametic compressors - a wide span of Copeland's 4R/6R reciprocating semi-hermetic line. When one of these units shows reduced capacity, elevated head pressure, or short-cycling, it's usually the suction and discharge reeds giving out, and this kit restores the valve section to factory spec across the whole listed model range.

Because it covers multiple frame sizes and HP ratings under one part number, it's a good kit to keep on the shelf if you service a fleet of 4R/6R-series compressors regularly - one SKU covers a lot of ground instead of stocking a separate kit per model variant.

Key Benefits

• Broad 4R/6R Model Coverage: Fits 4RA-20HP, 4RE, 6RA-630HP, 6RB, 6RE, and 6RN Copelametic compressor models.
• Complete Valve-Section Rebuild: Valve plate, suction and discharge reeds, reed pins, and gaskets in one kit.
• Restores Lost Capacity: Corrects the head-pressure rise and capacity drop that worn or fractured reeds cause on 4R/6R-body compressors.
• OEM Manufacturing: Built to Copeland's original tolerances, so valve timing and seating match factory specification.

Common Questions

• What compressors does this fit? Copeland 4RA-20HP, 4RE, 6RA-630HP, 6RB, 6RE, and 6RN Copelametic models.
• Why does one kit cover so many model variants? Copeland shares this valve plate assembly across the listed 4R and 6R frame sizes and HP ratings, so one part number services the whole range rather than requiring a kit per variant.
• What symptoms indicate this kit is needed? Reduced cooling capacity, rising head pressure, or short-cycling on any of the listed 4R/6R models usually point to worn or fractured suction/discharge reeds.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.