Motorad MO318 Engine Oil Filter Cap

Brand Motorad MO318
Material Plastic
Material Plástico
10522 Yes
Head Diameter 1.06
Head Diameter 26.92
Length 3.45
Length 87.63
Color Black
Color Negro
Attachment Type Atornillar
Attachment Type Screw on
Width 3.45
Width 87.63
Cap Depth 1.88
Cap Depth 47.75
Height 113.28
Height 4.46
Universal Or Specific Fit Specific
Shape Redondo
Shape Round
Grade Type Standard replacement
Gasket Or Seal Included Yes
Indicator Markings Yes
Indicator Markings Color Black
Indicator Markings Color Negro
Gasket Or Seal Material Caucho
Gasket Or Seal Material Rubber
9816 18.81
9816 25.5
Thread Diameter 3.13 in
Fits Jeep and Ram · 14 vehicles

OE-quality replacement. Built to meet or exceed OEM standards in ISO TS16949 facilities.

Screw-on design. Provides a secure service fit with a round plastic construction.

Seal included. Rubber gasket material supports a tighter, cleaner closure.

Cross-references Dorman - OE Solutions 921-163, Motorad MO318 and 68148345AA for the same application. See all 4.

$46.40Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $46.40
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Engine Oil Filter Cap Overview

The MotoRad MO318 engine oil filter cap is a specific-fit replacement built for reliable sealing and consistent service in demanding conditions. It uses OEM-approved materials and meets or exceeds OEM quality standards for applications such as Jeep Grand Cherokee and Ram 1500 service.

Key Features

  • Specific-fit engine oil filter cap for direct replacement use.
  • Plastic construction with a black finish.
  • Round design with screw-on attachment.
  • Rubber gasket or seal included for sealing performance.
  • Indicator markings included for easier service identification.
  • Manufactured in ISO TS16949 facilities to meet or exceed OEM quality standards.

Detailed Description

MotoRad MO318 is an engine oil filter cap designed as a standard replacement for applications that require a specific-fit cap with a screw-on design. The cap is made from OEM-approved plastic and uses a rubber seal to support a secure fit under temperature and load changes. Its round profile, black color, and indicator markings make it a practical service part for routine maintenance on Jeep Grand Cherokee and Ram 1500 applications. This part cross-references Dorman - OE Solutions 921-163 for the same application. MO318 is manufactured to meet or exceed OEM quality standards.

What It Is Used For

  • Replacing a cracked or worn oil filter cap.
  • Restoring proper sealing at the oil filter housing.
  • Addressing stripped or damaged cap threads.
  • Correcting leaks caused by a failed gasket or seal.

Installation Notes and Tips

Verify thread diameter, cap depth, and overall dimensions before installation. Confirm the application matches the vehicle service requirements for the oil filter housing. Inspect the sealing surface and gasket area during installation to help ensure proper seating. Use the part number MO318 to confirm the correct replacement before service.

Quality Assurance

MotoRad manufactures this cap in ISO TS16949 facilities and states that it meets or exceeds OEM quality standards. The MO318 is built with OEM-approved materials for durability in extreme temperatures and conditions.

This part fits 14 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2021JeepGrand Cherokee3.0LV6—
2020JeepGrand Cherokee3.0LV6—
2019JeepGrand Cherokee3.0LV6—
2019Ram1500 Classic3.0LV6—
2018JeepGrand Cherokee3.0LV6—
2018Ram15003.0LV6—
2017JeepGrand Cherokee3.0LV6—
2017Ram15003.0LV6—
2016JeepGrand Cherokee3.0LV6—
2016Ram15003.0LV6—
2015JeepGrand Cherokee3.0LV6—
2015Ram15003.0LV6—
2014JeepGrand Cherokee3.0LV6—
2014Ram15003.0LV6—
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - OE Solutions — 921-163Motorad — MO31868148345AACAP8157RM