Skip to product information
177342087851-0 - Northline Parts

John Deere 15 PSI Radiator Cap AT173610 for Loaders, Harvesters and Tractors

SKU: NLT1V00319
$22.99 In Stock
$22.99
Sale price  $22.99 Regular price 
Ships for free in 2–4 business days.
Aftermarket 15 PSI radiator cap replacing John Deere AT173610 across the compatible construction, forestry, turf, and harvesting equipment listed below.
Estimated delivery between
Shop at Northline Parts Best Customer Service Best Online Parts

Let Northline Parts Do the Heavy Lifting for You!

Not sure which part you need? Our team can help you find the right replacement.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
  • John Deere 110 and 110 TLB; 120C and 120D; 160 and 160C; 200, 200C, 230C, 240, 250, 250D, 260, 270, 270C and 280
  • John Deere 300D, 300DW, 310E, 310G, 310SE, 310SG, 315SE, 315SG, 318D, 319D, 320D, 323D and 326D
  • John Deere 770B, 770BH, 770C, 770C II, 770CH, 770CH II and 770D
  • John Deere 772B, 772BH, 772CH, 772CH II and 772D; 870D and 872D
  • John Deere 824J, 843G, 843H, 843J, 843K, 844J, 844K, 848H, 850, 850C, 850J, 853G, 853J, 862B, 900, 903G, 903J, 909J, 953G, 953J and 959J
  • John Deere 1600 Turbo Series II and III; 1850, 2054, 2554 and 3554
  • John Deere 9560STS, 9660STS, 9670STS, 9760STS and 9770STS combines
  • John Deere S560, S660, S670, S670H, S690, S760 and S770 combines
  • John Deere TC44H, TC54H and TC62H

Product Overview

Coolant around the filler neck, early boil-over, a collapsed hose after cooldown, or a system that will not hold pressure can lead to the cap. A cap is not a cure for overheating caused by low coolant, airflow, thermostat, pump, radiator, head-gasket, or engine-load problems.

The cap seals the filler neck and controls cooling-system pressure at approximately 15 PSI. Pressure rating and neck dimensions are safety-critical: installing a higher or lower rating than specified can change boiling protection or stress hoses, radiator tanks, and seals.

Key Features & Performance

  • 15 PSI pressure rating for systems specified for AT173610
  • Maintains cooling-system pressure and allows controlled recovery flow
  • Cross-references John Deere AT173610
  • Broad Deere application coverage with dimensions for positive matching

Replaces Part Numbers

  • AT173610

Common Uses

  • Replacing a cap that no longer holds specified pressure
  • Correcting coolant seepage at a sound filler neck
  • Repairing a failed vacuum-return valve that collapses hoses
  • Renewing a damaged or missing cap with the specified rating

Technical Specifications

  • Product Type: Radiator Pressure Cap
  • Pressure Rating: 15 PSI / approximately 103 kPa
  • Cap Outside Diameter: Approximately 65.52 mm
  • Filler-Neck Inside Diameter: Approximately 51.56 mm
  • Seal Outside Diameter: Approximately 30.99 mm
  • Height: Approximately 15.19 mm
  • Condition: New aftermarket

Installation & Fitment

  • Never remove a radiator cap from a hot or pressurized engine
  • Confirm the equipment specification calls for 15 PSI and AT173610
  • Inspect the filler-neck seats, overflow hose, recovery bottle, and sealing surfaces
  • Install fully, pressure-test the system, and correct the original overheating or leakage cause

Compatibility Notice

Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.

Production date, serial number, engine option, dimensions, connections, and previous repairs can change the part used within the same model. Compare the removed item and service information before purchase.

Frequently Asked Questions

Q: Can a weak radiator cap cause coolant loss? A: Yes. If it opens too early or fails to seal, coolant can escape before the system reaches its specified pressure. Other leaks and overheating causes still need checking.

Q: Can I replace it with a higher-pressure cap? A: No. Use only the pressure rating specified for the machine. More pressure can damage cooling-system parts and create a safety hazard.

Q: How should fitment be confirmed before ordering? A: Use the compatible list as a starting point, then compare the original reference number, dimensions, connections, mounting details, production date, and equipment or engine serial information.

Q: Is this supplied by the original equipment manufacturer? A: This is a new aftermarket part. The brand and model names identify the applications it is intended to service.

Part Summary

keywords: John Deere AT173610 radiator cap, 15 PSI Deere cap, S670 coolant cap, 310SG radiator pressure cap, Deere loader overheating cap, combine cooling system cap

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.

Customers also purchased