Motorad Engine Crankcase Breather Cap MO-75
Motorad Engine Crankcase Breather Cap MO-75

Motorad Engine Crankcase Breather Cap P/N:MO75

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$24.99
WARNING:California Proposition 65▾
MPN: MO-75
Item Package Code: EA
Part Has Core (Y/N): N
Item Package Quantity: 1
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Motorad Engine Crankcase Breather Cap P/N:MO75
Motorad Engine Crankcase Breather Cap P/N:MO75
$24.99

Seal the crankcase vent and keep blowby gases in check with the Motorad Engine Crankcase Breather Cap (P/N MO75) — a press-fit metal cap designed to cover the crankcase breather port and prevent oil loss while the engine vents combustion gases. It fits a wide range of classic Chrysler, Dodge, Plymouth, and Jeep models spanning 1971 through 2001, from the Dodge Dart and Plymouth Barracuda to the Dodge Ram 1500 and Jeep Grand Cherokee.

  • OE-supplier quality: Made from quality components by an OE supplier, with proper fit and sealing engineered to prevent oil loss.
  • Leak prevention: Provides a secure seal at the breather port to guard against oil seepage and crankcase contamination.
  • Crankcase ventilation: Helps control crankcase ventilation by routing blow-by gases through the intended ventilation system rather than allowing oil mist or vapors to escape at the breather opening.
  • Metal construction, gold finish: Metal housing with a gold-tone finish suited to the engine compartment; 1.00 in (25.40 mm) neck diameter; non-replaceable filter element; press-fit mounting.
  • OEM-spec grade: Built to OE-level tolerances as a standard-replacement unit that matches the original application.

When a crankcase breather cap cracks, loosens, or loses its seal, the signs can include an oily film or residue around the valve cover and breather port, a rough or erratic idle caused by an unmetered air leak into the crankcase, and elevated oil consumption as crankcase pressure pushes oil past seals. If this cap is the source of those symptoms, swapping it with the Motorad MO75 restores the sealed, properly vented crankcase the engine needs.

Fits: 1971-1973 Dodge Polara · 1972-1974 Dodge Challenger · 1972-1978 Dodge Charger · 1972-1977 Dodge Dart · 1972-1974 Plymouth Barracuda · 1972-1974 Plymouth Cuda · 1974-1993 Dodge Ramcharger · 1987-1997 Dodge Dakota · 1993-1997 Jeep Grand Cherokee · 1994-1998 Dodge Ram 1500 — see the Buyer's Guide tab for the full list.

Replaces / cross-references: 12C23 · FB101 · FB69 · 703-1371 · 7031371 · 8075 · 3462094 · 4273322 · 4343491 · 4343665 · 4343918 · 4573456 · 5214561 · 53006352 · 53006353 · 53030081 · 53030254 · EC686 · P8075 · 10075

This part cross-references / interchanges with the following part numbers:

12C23, FB101, FB69, 703-1371, 8075, 3462094, 4273322, 4343491, 4343665, 4343918, 4573456, 5214561, 53006352, 53006353, 53030081, 53030254, MO75, EC686, P8075, 10075

Frequently Asked Questions

Does this breather cap fit my Dodge Dakota or Ram?

Yes — it fits the 1987–1997 Dodge Dakota and 1994–1998 Dodge Ram 1500, 2500, and 3500, among over 100 Chrysler, Dodge, Plymouth, and Jeep models. Check the Buyer's Guide tab for the complete fitment list.

What part numbers does this replace?

It cross-references 12C23, FB101, FB69, 703-1371, 8075, 3462094, 4273322, 4343491, 4343665, 4343918, 4573456, EC686, P8075, 10075, and others. See the full cross-reference list in the description.

Is the filter element replaceable, and is hardware included?

No — the filter element is not replaceable; this is a complete replacement cap. It is a press-fit unit, so no additional mounting hardware is required for installation.

Is this a direct-fit replacement for my original breather cap?

Yes. The Motorad MO75 is a standard-replacement, press-fit breather cap built to OE-level tolerances with a 1.00 in (25.40 mm) neck diameter to match the original breather port on the listed applications.

How does a crankcase breather cap work?

It caps the crankcase vent port, allowing controlled venting of blowby gases while its seal prevents oil from escaping. A failed cap can cause oil leaks, oil mist buildup, and rough idle from an unmetered air leak.

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