O-Ring Seal for John Deere Water Pump 6M 6R 7R Ref. 74702408 OEM R541830

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GranitRef. OEM

O-Ring Seal for John Deere Water Pump 6M 6R 7R Ref. 74702408 OEM R541830

O-ring sealing ring part number 74702408 (OEM reference John Deere R541830). Specifically engineered to provide a tight, leak-proof seal for the engine water pump on John Deere 6068 engines powering tractor lines 6M, 6R, 7R, and series T and W combine harvesters. Manufactured from high-grade elastomeric material resistant to coolant fluids, intense thermal stress, and system pressure.

Calibrated Precision Radial Sealing
Thermal & Chemical Resistance
Low Compression Set

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Description

Key features

Calibrated Precision Radial SealingToroidal circular cross-section conforms strictly to factory John Deere machining tolerances, providing exact groove fitment and zero risk of high-pressure fluid extrusion.

Thermal & Chemical ResistanceEngineered elastomeric polymer resists degradation from continuous exposure to boiling coolant mixtures, ethylene glycol, and extended-life OAT/HOAT inhibitor packages.

Low Compression SetRetains its cross-sectional elasticity and sealing force throughout long operating intervals, accommodating severe engine block thermal expansion without hardening or cracking.

Direct OEM InterchangeabilityDirect drop-in replacement built to original equipment specifications for John Deere part number R541830.

Clean, Reliable InstallationFits cleanly into the machined housing groove using a light film of fresh coolant for lubrication, completely eliminating the need for RTV silicone sealants.

Specifications

Commercial Part Number	74702408
Original Equipment Reference (OEM)	R541830
Product Classification	Engine cooling water pump radial O-ring gasket
Associated Component	Compatible with water pump part number 74702407 (OEM RE557899)
Engine Series Compatibility	John Deere PowerTech 6.8L (6068 HL, RW, HZ Series)
Coolant Compatibility	Ethylene glycol solutions, OAT, HOAT formulations, and treated water