Eaton Dana 30/186MM JL Master Install Kit

SKU: EATK-D30-186

Ring and Pinion Gear Installation Kits

EAT Differential Install Kit...

Eaton

Eaton Dana 30/186MM JL Master Install Kit

SKU: EATK-D30-186

Ring and Pinion Gear Installation Kits

EAT Differential Install Kit...

Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

We accept

Description

Eaton master installation kits make upgrading your differential easier by providing all the components needed to properly install your Eaton differential or replace your ring and pinion, in one box. Premium bearings and components ensure long life and quiet operation.

Part Type

Ring and Pinion Gear Installation Kits

Data: v4.2 - Upd: 2026-09-28 14:55:29

Features

Eaton only uses premium bearings
Fits 2019-2022 JL Wrangler
For Eaton: 912A585
Front
Includes all necessary components to complete installation
Reference Eatons application guide to confirm part fitment

Specifications

Product Attributes - Brand: EATON
Product Attributes - Manufacturer's Part Number: K-D30-186
Product Attributes - Part Type: Ring and Pinion Gear Installation Kits
Product Attributes - Product Line: Eaton Master Differential Installation Kits
Product Attributes - UPC: 840379335385
Product Attributes - Differential Case Design Type: Dana 30/M186, Jeep Wrangler JL
Product Attributes - Cover Bolts: 12
Product Attributes - Ring Gear Bolts: 10
Product Attributes - Axle Shaft Spline Quantity: 24
Product Attributes - Pinion Spline Count: 26
Product Attributes - Ring Gear Rotation: Reverse
Product Attributes - Cover Gasket Included: No
Product Attributes - Pinion Shims Included: Yes
Product Attributes - Carrier Shims Included: No
Product Attributes - Crush Sleeve Included: Yes
Product Attributes - Pinion Seal Included: Yes
Product Attributes - Pinion Nut Included: Yes
Product Attributes - Ring Gear Bolts Included: Yes
Product Attributes - Head Bearing Included: Yes
Product Attributes - Tail Bearing Included: Yes
Product Attributes - Carrier Bearings Included: Yes
Product Attributes - Axle Seals Included: No
Product Attributes - Axle Bearings Included: No
Product Attributes - Quantity: Sold as a kit.

Reference Information

Brand Name/s	Eaton
StreetFX SKU	eatK-D30-186
SFX Item ID	4500510
Supplier Item Code	4500510
Manufacturer SKU	K-D30-186
Manufacturer UPC	N/A
Alternative References	ETN-K-D30-186, 30/186MM

Compatibility

Application Data

Make JEEP
Model WRANGLER
Submodel 80TH ANNIVERSARY
Beginning Year 2021
Ending Year 2021
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	80TH ANNIVERSARY
Beginning Year	2021
Ending Year	2021
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel FREEDOM
Beginning Year 2021
Ending Year 2021
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	FREEDOM
Beginning Year	2021
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make	JEEP
Model	WRANGLER
Submodel	HIGH ALTITUDE
Beginning Year	2023
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make	JEEP
Model	WRANGLER
Submodel	HIGH ALTITUDE 4XE
Beginning Year	2023
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make	JEEP
Model	WRANGLER
Submodel	HIGH TIDE
Beginning Year	2023
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel ISLANDER
Beginning Year 2021
Ending Year 2021
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	ISLANDER
Beginning Year	2021
Ending Year	2021
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel RUBICON
Beginning Year 2019
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	SAHARA
Beginning Year	2023
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make	JEEP
Model	WRANGLER
Submodel	SAHARA 4XE
Beginning Year	2023
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make	JEEP
Model	WRANGLER
Submodel	SAHARA ALTITUDE
Beginning Year	2023
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make	JEEP
Model	WRANGLER
Submodel	SAHARA HIGH ALTITUDE
Beginning Year	2023
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation

Make	JEEP
Model	WRANGLER
Submodel	SPORT
Beginning Year	2018
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel SPORT
Beginning Year 2019
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	SPORT ALTITUDE
Beginning Year	2023
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make	JEEP
Model	WRANGLER
Submodel	SPORT S
Beginning Year	2018
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel SPORT S
Beginning Year 2019
Ending Year 2022
Drivetrain 4WD
Axle Location Front
Make JEEP
Model WRANGLER
Submodel UNLIMITED 80TH ANNIVERSARY
Beginning Year 2021
Ending Year 2021
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED 80TH ANNIVERSARY
Beginning Year	2021
Ending Year	2021
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel UNLIMITED FREEDOM
Beginning Year 2021
Ending Year 2021
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED FREEDOM
Beginning Year	2021
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel UNLIMITED HIGH ALTITUDE
Beginning Year 2021
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED HIGH ALTITUDE
Beginning Year	2021
Ending Year	2022
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED HIGH ALTITUDE
Beginning Year	2023
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation

Make JEEP
Model WRANGLER
Submodel UNLIMITED HIGH ALTITUDE 4XE
Beginning Year 2021
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED HIGH ALTITUDE 4XE
Beginning Year	2021
Ending Year	2022
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel UNLIMITED HIGH TIDE
Beginning Year 2022
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED HIGH TIDE
Beginning Year	2022
Ending Year	2022
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel UNLIMITED ISLANDER
Beginning Year 2021
Ending Year 2021
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED ISLANDER
Beginning Year	2021
Ending Year	2021
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED MOAB
Beginning Year	2018
Ending Year	2019
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel UNLIMITED MOAB
Beginning Year 2019
Ending Year 2019
Drivetrain 4WD
Axle Location Front
Make JEEP
Model WRANGLER
Submodel UNLIMITED RUBICON
Beginning Year 2019
Ending Year 2022
Drivetrain 4WD
Axle Location Front
Make JEEP
Model WRANGLER
Submodel UNLIMITED RUBICON 392
Beginning Year 2021
Ending Year 2022
Drivetrain 4WD
Axle Location Front
Make JEEP
Model WRANGLER
Submodel UNLIMITED RUBICON 4XE
Beginning Year 2021
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED SAHARA
Beginning Year	2018
Ending Year	2022
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel UNLIMITED SAHARA
Beginning Year 2019
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED SAHARA
Beginning Year	2023
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation

Make JEEP
Model WRANGLER
Submodel UNLIMITED SAHARA 4XE
Beginning Year 2021
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED SAHARA 4XE
Beginning Year	2021
Ending Year	2022
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel UNLIMITED SAHARA ALTITUDE
Beginning Year 2021
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED SAHARA ALTITUDE
Beginning Year	2021
Ending Year	2022
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED SAHARA ALTITUDE
Beginning Year	2023
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED SAHARA HIGH ALTITUDE
Beginning Year	2021
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED SPORT
Beginning Year	2018
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel UNLIMITED SPORT
Beginning Year 2019
Ending Year 2022
Drivetrain 4WD
Axle Location Front
Make JEEP
Model WRANGLER
Submodel UNLIMITED SPORT ALTITUDE
Beginning Year 2021
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED SPORT ALTITUDE
Beginning Year	2021
Ending Year	2022
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED SPORT ALTITUDE
Beginning Year	2023
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED SPORT S
Beginning Year	2018
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel UNLIMITED SPORT S
Beginning Year 2019
Ending Year 2022
Drivetrain 4WD
Axle Location Front
Make JEEP
Model WRANGLER
Submodel UNLIMITED WILLYS
Beginning Year 2021
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED WILLYS
Beginning Year	2021
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel UNLIMITED WILLYS SPORT
Beginning Year 2021
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	UNLIMITED WILLYS SPORT
Beginning Year	2021
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel WILLYS
Beginning Year 2021
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	WILLYS
Beginning Year	2021
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make	JEEP
Model	WRANGLER
Submodel	WILLYS 4XE
Beginning Year	2023
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

Make JEEP
Model WRANGLER
Submodel WILLYS SPORT
Beginning Year 2021
Ending Year 2022
Drivetrain 4WD
Axle Location Front

Make	JEEP
Model	WRANGLER
Submodel	WILLYS SPORT
Beginning Year	2021
Ending Year	2023
Application Notes	Eaton Master Differential Install Kit; Front; Dana 30/MM186 JL; 12 Cover Bolts; 10 Ring Gear Bolts; 24 Axle Spline; 26 Pinion Spline; Reverse Rotation
Region	USA

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Eaton Dana 30/186MM JL Master Install Kit

Eaton Dana 30/186MM JL Master Install Kit

Description

Part Type

Features

Specifications

Reference Information

Compatibility

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