7-Piece Master Piston Ring Compressor & Ratchet Plier Set (73 - 111mm), 50843

7-Piece Master Piston Ring Compressor & Ratchet Plier Set (73 - 111mm), 50843

The Mechanical Engine Piston Ring Compressor Assembly Kit is an essential, multi-size workshop solution engineered for professional engine rebuilding and cylinder block service. This high-precision system enables automotive technicians to smoothly insert compressed piston rings into the engine bores from above, removing the risk of brittle ring fracture or wall gouging.
The kit incorporates 6 premium-grade structural carbon steel bands finished with an anti-rust oil barrier.
Driven by the heavy-duty extended ratchet pliers, the system automatically fine-tunes compression values in minor increments and holds the handles securely in position, leaving the operator's hands free to guide the piston smoothly into place.
Perfect for cars, light trucks, and motorcycles.
Packaged in an organized shock-resistant molded plastic case.

Kit Quantity: 7 Pieces total (1x heavy-duty ratchet plier handle + 6x interchangeable band sleeves)
Piston Workload Diameter: 73 mm to 111 mm (2-7/8” to 4-3/8”)
Tension Band Sizing Scale (6 Pcs):

• Band 1: 73 – 79 mm (2-7/8" to 3-1/8")
• Band 2: 79 – 86 mm (3-1/8" to 3-3/8")
• Band 3: 86 – 92 mm (3-3/8" to 3-5/8")
• Band 4: 92 – 98 mm (3-5/8" to 3-7/8")
• Band 5: 98 – 105 mm (3-7/8" to 4-1/8")
• Band 6: 105 – 111 mm (4-1/8" to 4-3/8")

Tension Band Height: ~38 - 40 mm
Material Compound: Multi-hardened 50# high-strength structural carbon steel
Storage Unit: High-density blue blow-molded carrying case

Made in China

Package:
 

Code: 501018

International shipment available. Please ask for price.