Ask Don · 20261004_190000_stant-27149-thermostat-gasket-fitment-guide

Stant 27149 Thermostat Gasket (Stat Lok, NOS) – Fitment Guide for Ford, Lincoln, Mercury (1965–1985)

Fitment Guide for Ford, Lincoln, Mercury (1965–1985)

Stant 27149 Stat Lok Engine Coolant Thermostat Gasket – NOS in Original Stant Packaging

Keep your classic on the road with a genuine Stant 27149, the Stant thermostat gasket for Ford's inline sixes — the 170, 200, 240, 250, 300 and 3.3L/4.1L — from 1965 to 1983 in Ford, Mercury and Lincoln cars and trucks, plus a handful of 351/5.0L/5.8L V8 applications from 1977 to 1985. Stant's Stat Lok gaskets have an adhesive backing that holds the thermostat centered in its seat while you bolt the housing down — no gasket cement, no thermostat falling out, and less risk of misalignment or cracking the outlet flange.

Key Features

• Part Number: Stant 27149 (single pack); same gasket as Stant 25149 / B49 in the Stant catalog and cross-reference tables
• Type: Engine coolant thermostat (housing/water outlet) gasket, Stat Lok adhesive-backed
• Thermostat opening (mounting hole) diameter: 1.78 in. (per Gates/retailer data for the direct equivalent)
• Condition: New Old Stock (NOS) in original Stant packaging
• Cross-references: Gates 33632; ACDelco 12G13; Fel-Pro 8E35067; Ford OE D4PZ 8255 F, E5TZ 8255 D; Victor Reinz C24005VC; OE E5TZ8255D, D4PZ8255F

Stant's own 1928–1994 application catalog lists the 27149 for 3 makes from 1965 to 1985. It is ideal for restoration projects, weekend drivers and mechanics working on obsolete iron.

Compatible Makes & Models (from the Stant catalog)

• Ford (1965–1983): Bronco (1970–1974, 1980–1981), Custom (1965–1972), Custom 500 (1971–1972), E Series Van (1965–1981), F Series Pickup (1965–1981), Fairlane (1969–1970), Fairmont (1978–1983), Falcon (1970), Galaxie (1965–1970), Galaxie 500 (1971–1972), Gran Torino (1972–1974), Granada (1975–1982), LTD (1979, 1983), Maverick (1970–1977), Meteor (1965–1969), Mustang (1969–1973, 1979–1982), P Series Van (1965–1970, 1974), Ranchero (1970–1974, 1979), Thunderbird (1979–1982), Torino (1969–1974)
• Lincoln (1977, 1980): Mark VI (1980), Versailles (1977, 1980)
• Mercury (1965–1966, 1970–1983, 1985): Capri (1979–1982, 1985), Comet (1965–1966, 1971–1977), Cougar (1979–1983, 1985), Marquis (1979, 1983), Monarch (1975–1980), Montego (1970–1974), Zephyr (1978–1983)

Note: Always verify fitment for your specific year, make, model and engine. The full engine-by-engine list is in the fitment appendix below. If you have your old gasket, compare its shape, bolt holes and opening size — or just ask Don and Kathy.

Price is $9.95 plus shipping. Don and Kathy offer a fair deal for this. Buying for a club, a shop, or a whole fleet of project cars? Even better.

Why Buy From Don & Kathy at Don's Obsolete Auto Parts? Don Leask founded one of the earliest online obsolete auto parts businesses (carparts2 on eBay in 1997 — the second auto parts store on eBay) and grew it to 11,000–17,000 unique listings. Today, with help from their digital agent Misty ([email protected]), Don and Kathy connect directly with restorers and collectors while preserving their legacy of quality parts. These gaskets come from Don's own shelves, in original Stant packaging.

To reach them, click the "Don & Kathy Leask" button at the bottom left of any page on donsobsoleteautoparts.com, or email [email protected].

The Stant 27149 Thermostat Gasket: The Right Seal for Ford and Lincoln Restorations

Thermostat gaskets are small, but they decide whether a cooling system stays dry. When the thermostat housing comes off a project car or truck, the right gasket is the quiet part that keeps the job from turning into a second trip to the parts counter.

The Stant 27149 is the Stant thermostat gasket for Ford's inline sixes — the 170, 200, 240, 250, 300 and 3.3L/4.1L — from 1965 to 1983 in Ford, Mercury and Lincoln cars and trucks, plus a handful of 351/5.0L/5.8L V8 applications from 1977 to 1985. Like the rest of Stant's Stat Lok line, it has an adhesive backing that holds the thermostat in place during installation, so it seats squarely and seals the first time.

Why This Gasket Matters Stant's application catalog covering 1928 through 1994 lists the 27149 across 3 makes (Ford, Lincoln, Mercury). Cross-reference tables tie it to the Stant 25149, Gates 33632 and Fel-Pro 8E35067, which makes it easy to match against an old parts list or a worn-out gasket.

Real-World Fitment Examples

• Ford F-Series pickups and E-Series vans with the 240 or 300 six
• Ford Bronco 170/200 six (1970–1974)
• Ford Mustang, Maverick, Torino and Granada with the 200 or 250 six
• Mercury Comet, Monarch, Montego and Zephyr sixes
• 1977 and 1980 Lincoln Versailles; 1980 Lincoln Mark VI 5.8L

Because these were high-volume service items, NOS stock still turns up in collections like Don Leask's — in original Stant packaging, sorted by number.

Preserving American Automotive History Don and Kathy Leask have been part of the classic car world since the early days of the internet. Starting with carparts2 on eBay in 1997, they became one of the largest online sellers of obsolete parts. Now, with their AI-assisted Don's Obsolete Auto Parts site and digital agent Misty, they're making hard-to-find parts discoverable again — connecting owners of rare inventory with the enthusiasts who need them.

Buying Tips

• Match three things before ordering: year, model and engine. Some engines had more than one thermostat housing design.
• Measure the thermostat opening: the 27149 is listed at about 1.78 in.
• Prefer original packaging for authenticity; keep the Stant label with the part.
• Restoration shops, clubs and collectors can ask about quantity pricing.

Whether you're chasing a concours restoration or simply keeping a classic on the road, the Stant 27149 is a period-correct, ready-to-install solution.

Fitment appendix — every Stant catalog line for

27149

Source: Stant Thermostats, Gaskets, Caps – 1928 through 1994 (application pages). Format: Model — years [engine: years] (notes). Catalog coverage ends with 1994 models.

Ford

• Bronco — 1970–1974, 1980–1981 [6-Cyl. 170: 1970–1972; 6-Cyl. 200: 1973–1974; V-8 5.8 L: 1980–1981]
• Custom — 1965–1972 [6-Cyl. 240: 1965–1972]
• Custom 500 — 1971–1972 [6-Cyl. 240: 1971–1972]
• E Series Van — 1965–1981 [6-Cyl. 170: 1970–1971; 6-Cyl. 240: 1965–1974; 6-Cyl. 300: 1972–1979; V-8 5.8 L: 1980–1981]
• F Series Pickup — 1965–1981 [6-Cyl. 240: 1965–1975; 6-Cyl. 300: 1965–1979; V-8 5.8 L: 1980–1981]
• Fairlane — 1969–1970 [6-Cyl. 250: 1969–1970; V-8 351: 1970 (with Cleveland engine)]
• Fairmont — 1978–1983 [6-Cyl. 200: 1978–1979; 6-Cyl. 3.3 L: 1980–1983]
• Falcon — 1970 [6-Cyl. 250: 1970]
• Galaxie — 1965–1970 [6-Cyl. 240: 1965–1970]
• Galaxie 500 — 1971–1972 [6-Cyl. 240: 1971–1972]
• Gran Torino — 1972–1974 [6-Cyl. 250: 1972–1974]
• Granada — 1975–1982 [6-Cyl. 200: 1975–1977; 6-Cyl. 250: 1975–1979; 6-Cyl. 3.3 L: 1981–1982; 6-Cyl. 4.1 L: 1980]
• LTD — 1979, 1983 [6-Cyl. 3.3 L: 1983; V-8 351: 1979]
• Maverick — 1970–1977 [6-Cyl. 170: 1970–1972; 6-Cyl. 200: 1970–1977; 6-Cyl. 250: 1970–1977]
• Meteor — 1965–1969 [6-Cyl. 240 (Canada): 1965–1969]
• Mustang — 1969–1973, 1979–1982 [6-Cyl. 200: 1979; 6-Cyl. 250: 1969–1973; 6-Cyl. 3.3 L: 1980–1982; V-8 351: 1970–1973 (with Cleveland engine)]
• P Series Van — 1965–1970, 1974 [6-Cyl. 240: 1965–1970; 6-Cyl. 300: 1965–1970, 1974]
• Ranchero — 1970–1974, 1979 [6-Cyl. 250: 1970–1973; V-8 351: 1971–1974, 1979 (engine VIN code M; engine VIN code Q; with Modified engine)]
• Thunderbird — 1979–1982 [6-Cyl. 3.3 L: 1980–1982; V-8 351: 1979]
• Torino — 1969–1974 [6-Cyl. 250: 1969–1974; V-8 351: 1971–1972, 1974 (engine VIN code M; engine VIN code Q)]

Lincoln

• Mark VI — 1980 [V-8 5.8 L: 1980]
• Versailles — 1977, 1980 [V-8 302: 1977; V-8 351: 1977; V-8 5.0 L: 1980]

Mercury

• Capri — 1979–1982, 1985 [6-Cyl. 200: 1979; 6-Cyl. 3.3 L: 1980–1982; V-8 5.0 L: 1985]
• Comet — 1965–1966, 1971–1977 [6-Cyl. 170: 1971–1972; 6-Cyl. 200: 1965–1966, 1971–1977; 6-Cyl. 250: 1971–1977]
• Cougar — 1979–1983, 1985 [6-Cyl. 3.3 L: 1980–1982; V-8 351: 1979; V-8 5.0 L: 1983, 1985]
• Marquis — 1979, 1983 [6-Cyl. 3.3 L: 1983; V-8 351: 1979]
• Monarch — 1975–1980 [6-Cyl. 200: 1975–1977; 6-Cyl. 250: 1975–1979; 6-Cyl. 4.1 L: 1980]
• Montego — 1970–1974 [6-Cyl. 250: 1970–1974]
• Zephyr — 1978–1983 [6-Cyl. 200: 1978–1979; 6-Cyl. 3.3 L: 1980–1983]

Cross-references (full)

• Gates: 33632
• ACDelco: 12G13
• Fel-Pro: 8E35067
• Ford OE: D4PZ 8255 F, E5TZ 8255 D
• Victor Reinz: C24005VC
• OE numbers listed by AutoPartsPrime: E5TZ8255D, D4PZ8255F
• Stant equivalents: 25149 (multi/bulk-pack number paired with 27149 in the catalog), B49

Sources

1. Stant Thermostats, Gaskets, Caps – 1928 through 1994 catalog (scan on Internet Archive): https://archive.org/details/StantThermostatsGasketsCaps1928Through1994OCR637Pages — Stant part-number index ("Make / Year(s)" table, PDF p. 633–634) and application pages (PDF pages 429–524; 36 pages list 27149). Every catalog line pairs "Thermostat Gasket 25149" with "Thermostat Gasket (1 Pack) 27149".
2. AutoPartsPrime – STANT 27149 Engine Coolant Thermostat Gasket (type, UPC, OE numbers, fitment): https://www.autopartsprime.com/stant/engine-coolant-thermostat-gasket/mp-27149
3. PartsHawk – Gates 33632 (interchange lists Stant 27149; mounting hole diameter 1.78"; fitment): https://partshawk.com/gates-33632-engine-coolant-thermostat-housing-gasket.html
4. KaKaPart – Stant 27149 (type "Thermostat Gasket", hole diameter 1.78"; application table): http://www.kakapart.com/parts/stant-27149.html
5. PartCatalog – Stant 27149: https://www.partcatalog.com/stant-27149-engine-coolant-thermostat-gasket.html

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