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SEA 225R

1977 Triumph Stag

Blue Petrol 2997cc
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MOT Status

Valid
Expires12 Aug 2027
Tests24 (16 pass, 8 fail)
Pass rate66.7%

Mileage

95,784 mi
Last recorded95,784 miles
Recorded on20 Jul 2026
Typical for 1977 Triumph Stag60,708 mi

Significantly above average — investigate

4 checks still locked for this Triumph
Stolen
Finance
Write-off
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Vehicle Details

RegistrationSEA 225R
MakeTriumph
ModelStag
Year1977
ColourBlue
Fuel typePetrol
Engine2,997cc

All premium checks include

50+ data points
Finance Check (Experian) Insurance Write-off Salvage Auction Stolen Check Previous Owners Ex-Taxi, Police, NHS Mileage Anomaly Import / Export Scrapped Check Plate Changes

MOT History

16 pass 8 fail
Pass 20 Jul 2026 95,784 miles

Front to rear rigid brake pipes corroded

Power steering component has slight seepage from a component Steering rack (2.1.5 (a))

Rear Brakes imbalanced requirements only just met. It would appear that the braking system requires adjustment or repair. (1.2.1 (b) (i))

Rear Oil leak, but not excessive Differential (8.4.1 (a) (i))

Pass 15 Jul 2025 95,339 miles

Front rigid brake pipes corroded

Front to rear rigid brake pipes corroded

Oil leak, but not excessive Rear differential (8.4.1 (a) (i))

Power steering component has slight seepage from a component steering rack (2.1.5 (a))

Rear Brakes imbalanced requirements only just met. It would appear that the braking system requires adjustment or repair. (1.2.1 (b) (i))

Pass 18 Jul 2024 91,870 miles

Front rigid brake pipes corroded

Front to rear rigid brake pipe corroded

Oil leak, but not excessive (8.4.1 (a) (i))

Oil leak, but not excessive Rear Differential (8.4.1 (a) (i))

Power steering component has slight seepage from a component Steering rack (2.1.5 (a))

Rear Brakes imbalanced requirements only just met. It would appear that the braking system requires adjustment or repair. (1.2.1 (b) (i))

Pass 31 Jul 2023 90,694 miles

Both front rigid brake pipes corroded close to excess

Front to rear rigid brake pipe corroded

Nearside Front Tyre worn close to legal limit/worn on edge worn on outer edge (5.2.3 (e))

Nearside Power steering component has slight seepage from a component steering rack (2.1.5 (a))

Offside Front Tyre worn close to legal limit/worn on edge worn on outer edge (5.2.3 (e))

Oil leak, but not excessive Rear differential (8.4.1 (a) (i))

Pass 3 Aug 2022 88,478 miles

Both front steel brake pipes corroded

Front to rear steel brake pipe corroded

Offside Front Seat belt webbing slightly damaged or frayed (7.1.2 (b) (ii))

Offside Windscreen wiper blade defective (3.4 (b) (i))

Oil leak, but not excessive Rear differential (8.4.1 (a) (i))

Parking brake has just met the required effort, system may need adjustment or repair.

Power steering component has slight seepage from a component Steering rack (2.1.5 (a))

Pass 4 Aug 2021 84,403 miles

Central Brake pipe corroded, covered in grease or other material front to rear supply (1.1.11 (c))

Offside Seat belt webbing slightly damaged or frayed (7.1.2 (b) (ii))

Oil leak, but not excessive (8.4.1 (a) (i))

Fail 4 Aug 2021 84,403 miles

Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))

Stop lamp(s) all not working (4.3.1 (a) (iii)) DANGEROUS

Central Brake pipe corroded, covered in grease or other material front to rear supply (1.1.11 (c))

Offside Seat belt webbing slightly damaged or frayed (7.1.2 (b) (ii))

Oil leak, but not excessive (8.4.1 (a) (i))

Pass 22 Jul 2020 81,855 miles

Offside Front Seat belt webbing slightly damaged or frayed (7.1.2 (b) (ii))

Pass 7 Aug 2019 81,351 miles

Offside Front Seat belt webbing slightly damaged or frayed (7.1.2 (b) (ii))

Pass 13 Aug 2018 78,977 miles

Nearside Rear Road wheel slightly distorted (5.2.2 (c) (i))

Oil leak, but not excessive (8.4.1 (a) (i))

Fail 13 Aug 2018 78,976 miles

Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))

Offside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii))

Offside Rear Wheel bearing has excessive play (5.1.3 (a) (i))

Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i))

Nearside Rear Road wheel slightly distorted (5.2.2 (c) (i))

Oil leak, but not excessive (8.4.1 (a) (i))

Power steering pipe/hose has slight seepage (2.1.5 (a))

Pass 1 Aug 2017 77,768 miles

Nearside Front Brake pipe slightly corroded (3.6.B.2c)

Fail 1 Aug 2017 77,768 miles

Offside Front Steering rack gaiter split (2.2.D.2d)

Windscreen washer provides insufficient washer liquid (8.2.3)

Nearside Front Brake pipe slightly corroded (3.6.B.2c)

Pass 26 Jul 2016 76,129 miles

Brake pipe slightly corroded front to back (3.6.B.2c)

Parking brake lever has little reserve travel (3.1.6b)

Fail 26 Jul 2016 74,129 miles

Exhaust emissions carbon monoxide content excessive (7.3.B.1a)

Brake pipe slightly corroded front to back (3.6.B.2c)

Parking brake lever has little reserve travel (3.1.6b)

Pass 13 Jul 2015 74,570 miles
Fail 13 Jul 2015 74,569 miles

Exhaust emissions carbon monoxide content excessive (7.3.B.1a)

Nearside rear parking brake recording little or no effort (3.7.B.6a)

Parking brake: efficiency below requirements (3.7.B.7)

Rear Brakes imbalanced across an axle (3.7.B.5b)

Pass 12 Aug 2014 72,176 miles
Pass 19 Jul 2013 71,426 miles
Fail 17 Jul 2013 71,426 miles

Offside Indicator tell tale inoperative (1.4.A.2a)

Registration plate lamp not working (1.1.C.1d)

Windscreen washer provides insufficient washer liquid (8.2.3)

Front Fuel pipe leaking (7.2.3) DANGEROUS

Nearside Stop lamp not working (1.2.1b) DANGEROUS

Offside Stop lamp not working (1.2.1b) DANGEROUS

Pass 12 Apr 2012 69,833 miles
Fail 11 Apr 2012 69,833 miles

Steering rack gaiter split (2.2.D.2d)

Pass 3 Dec 2010 68,658 miles

front panel corroded

underside corroded

Fail 25 Nov 2010 68,653 miles

Nearside Headlamp not working on main beam (1.7.5a)

Nearside Stop lamp adversely affected by the operation of another lamp (1.2.1f)

Nearside Stop lamp not working (1.2.1b)

Nearside rear brake binding (3.7.B.1)

Offside Rear Tyre tread depth below requirements of 1.6mm (4.1.E.1)

Parking brake: efficiency below requirements (3.7.B.7)

Rear Brake pipe leaking (3.6.A.1)

Service brake: efficiency below requirements (3.7.B.7)

Windscreen washer provides insufficient washer liquid (8.2.3)

Nearside Rear Tyre worn close to the legal limit (4.1.E.1)

front panel corroded

underside corroded

How Reliable is the Triumph Stag?

Based on 64,590 MOT tests across 6,070 vehicles.

77.5%
Pass Rate
417
Miles/Year
56
Year Lifespan
6,070
On UK Roads

Top MOT Failure Points

Windscreen washer provides insufficient washer liquid 2,039
Parking brake: efficiency below requirements 1,744
Suspension component mounting prescribed area is excessively corroded 1,507
Stop lamp not working 1,283
brake binding 1,269
Full Triumph Stag reliability report

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SEA 225R is a 1977 Triumph Stag in Blue with a 2,997cc petrol engine. This vehicle has been through 24 MOT tests with a personal pass rate of 66.7%.

Across all 1977 Triumph Stag models, the average MOT pass rate is 77.7% with a typical mileage of 60,708 miles. This particular vehicle has a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

The most common reason a Triumph Stag fails its MOT is windscreen washer provides insufficient washer liquid, accounting for 2,039 recorded failures. If you're considering buying SEA 225R, it's worth having these areas checked by a mechanic before committing.

The Triumph Stag typically stays on UK roads for around 56 years. At 49 years old, this Triumph Stag is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of SEA 225R?

You can check the full history of SEA 225R by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was SEA 225R registered?

SEA 225R is a 1977 Triumph Stag, first registered on 1 February 1977.

Is SEA 225R safe to buy?

The MOT history for SEA 225R shows 24 tests with a 66.7% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does SEA 225R have outstanding finance?

Finance checks require a premium vehicle report. This checks against all major UK finance providers to see if there is any outstanding finance on SEA 225R. If you buy a car with outstanding finance, the finance company can repossess it.

No warranty or guarantee of accuracy is provided for any free data on this page. The data guarantee applies only to information obtained through the purchase of a full check.