This curated selection of products addresses a common issue for heavy machinery: a John Deere 690B radiator leak. It provides solutions for identifying the leak, temporarily sealing small leaks, refilling the system, and performing a proper repair. The bundle helps maintain the operational integrity of your heavy equipment.
Curated by The Shelf Curator · Updated June 2026
Built for owner-operators of older 690B excavators who need to manage cooling failures in the field without calling a service truck. Not for those performing a full factory rebuild—this shop focuses on emergency containment and diagnostic verification.
Curator's pick: Cooling System Pressure Tester Kit
Stop-leak is a gamble, but this tester tells you if the seal is actually holding or if you're just delaying an inevitable head gasket failure. It's the only way to confirm a pinhole leak versus a structural crack before you dump expensive additives into the system.
⚠ Worth knowing: Heavy duty stop-leak is a temporary patch that can eventually gum up your cab heater core or thermostat if left in the system for more than 100 hours of operation. It is meant to finish the job, not to serve as a permanent fix for a rotted-out core.
Used Heavy Equipment Inspection ChecklistsExcavator Hydraulic Hose Assembly KitsPost-Repair Engine Oil Analysis Services
Heavy Duty Radiator Stop Leak is formulated to seal minor leaks in heavy equipment cooling systems. It is intended for professional mechanics and equipment operators to address small, weeping leaks quickly, helping to prevent further coolant loss and potential overheating.
Seals pinhole leaks and hairline cracks
Compatible with various coolants
Formulated for heavy equipment systems
Reduces coolant loss
In this shop: This stop leak directly supports the 'heavy machinery maintenance and repair' vibe by offering a practical, immediate solution to a common equipment failure.
Diesel Engine Coolant / Antifreeze protects heavy-duty diesel engines from freezing, boiling, and corrosion. It is essential for refilling the cooling system after a leak has been repaired or for regular maintenance, ensuring optimal engine temperature regulation.
Heavy-duty, long-life formula
Corrosion protection for diesel engines
Freeze and boil protection
Suitable for various climates
In this shop: Proper coolant is fundamental to 'heavy machinery maintenance and repair,' making this an indispensable item after any cooling system intervention.
The John Deere 690B Service Manual provides comprehensive instructions, diagrams, and torque specifications specific to the 690B model. It is designed for mechanics needing precise information for disassembly, repair, and reassembly of various components, including the cooling system.
Model-specific repair procedures
Detailed exploded views and diagrams
Component torque specifications
Troubleshooting guides
In this shop: This service manual is central to the 'heavy machinery maintenance and repair' vibe by providing the authoritative, model-specific knowledge required for accurate repairs.
An Infrared Thermometer Gun allows for non-contact temperature measurement of engine components and the radiator. It helps mechanics identify hot spots, confirm flow blockages, or detect overheating issues within the cooling system without direct contact, aiding in quick diagnosis.
Non-contact temperature measurement
Identifies hot and cold spots
Quick diagnostic tool
Laser pointer for targeting
In this shop: This thermometer gun embodies the diagnostic aspect of 'heavy machinery maintenance and repair' by offering a quick and non-invasive way to assess system health.
A Cooling System Pressure Tester Kit is used to pressurize the cooling system and simulate operating conditions to locate leaks. It is crucial for pinpointing the exact source of a radiator or hose leak that might not be visible under normal pressure.
Pressurizes cooling system accurately
Helps locate hidden leaks
Adapters for various radiator necks
Durable pump and gauge
In this shop: The pressure tester is a core diagnostic tool for effective 'heavy machinery maintenance and repair,' enabling precise leak detection.
Replacement Radiator Hoses are essential components that carry coolant between the engine and radiator. They are often responsible for what appears to be a 'radiator leak' or should be replaced as a preventative measure when the cooling system is drained during other repairs.
Heavy-duty rubber construction
Resistant to heat and pressure
Direct fit for specific models
Upper and lower hose options
In this shop: These hoses align with the 'heavy machinery maintenance and repair' theme by addressing common wear items crucial for system integrity.
A Mechanic's Drain Pan with large capacity is designed to safely collect and contain used fluids during heavy equipment maintenance. It is necessary for capturing the significant volume of coolant from large excavators like the John Deere 690B, ensuring proper disposal and preventing spills.
High-capacity fluid collection
Spill-proof lip design
Durable, chemical-resistant material
Easy pour spout
In this shop: This large-capacity drain pan reinforces the practical and responsible aspects of 'heavy machinery maintenance and repair' by facilitating proper fluid handling.
