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NNU 377P

1976 Triumph Stag

Orange Petrol 2997cc
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MOT Status

Valid
Expires9 Nov 2026
Tests27 (20 pass, 7 fail)
Pass rate74.1%

Mileage

88,914 mi
Last recorded88,914 miles
Recorded on11 Oct 2025
Typical for 1976 Triumph Stag57,333 mi

Significantly above average — investigate

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

RegistrationNNU 377P
MakeTriumph
ModelStag
Year1976
ColourOrange
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

20 pass 7 fail
Pass 11 Oct 2025 88,914 miles
Pass 15 Oct 2024 87,655 miles
Pass 10 Nov 2023 87,322 miles
Pass 27 Sep 2022 86,674 miles
Pass 29 Sep 2021 86,227 miles
Pass 7 Oct 2020 84,455 miles
Pass 24 Sep 2019 84,394 miles
Pass 10 Sep 2018 84,388 miles
Pass 11 Sep 2017 83,431 miles
Pass 21 Sep 2016 83,197 miles
Fail 9 Jul 2016 83,189 miles

Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)

Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)

Windscreen washer provides insufficient washer liquid (8.2.3)

Offside Steering system has slight free play detected at steering wheel (2.2.A.1b)

Pass 2 Jul 2015 801,278 miles
Fail 29 Jun 2015 81,278 miles

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

Exhaust emissions hydrocarbon content excessive (7.3.B.1b)

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

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

rear brake application uneven (3.7.B.2)

Pass 4 Jul 2014 80,957 miles

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

Offside Front Tyre worn close to the legal limit (4.1.E.1)

Fail 4 Jul 2014 80,957 miles

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

Offside Front Tyre worn close to the legal limit (4.1.E.1)

Offside Rear Direction indicator not working (1.4.A.2c)

Pass 5 Apr 2013 80,653 miles

Exhaust has a minor leak of exhaust gases (7.1.2)

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

Oil leak

Fail 2 Apr 2013 80,653 miles

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

Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)

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

Offside Front Drag link end ball joint has excessive play (2.2.B.1f)

Offside Rear Shock absorber detached (2.7.2b)

Power steering pipe(s) or hose(s) leaking from a seal (2.3.3b)

Rear rear brake application uneven (3.7.B.2)

Exhaust has a minor leak of exhaust gases (7.1.2)

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

Oil leak

Pass 19 Mar 2012 79,670 miles

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

Offside Front Tyre worn close to the legal limit (4.1.E.1)

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

Steering column top bearing slightly worn (2.1.2c)

Pass 25 Mar 2011 78,738 miles

Oil leak

rear diff has oil leak

slight blow from manifold to down pipe joints also slight blow from middle box joints,slight pin hole in nearside tail pipe

Pass 8 Mar 2010 77,549 miles
Pass 30 Mar 2009 76,319 miles
Fail 26 Mar 2009 76,297 miles

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

Nearside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1)

Power steering pipe(s) or hose(s) leaking from a joint (2.3.3b)

Windscreen washer provides insufficient washer liquid (8.2.3)

rear brake application uneven (3.7.B.2)

rear brakes release unevenly (3.7.B.4)

Battery insecure

Pass 3 Apr 2008 75,239 miles
Fail 28 Mar 2008 75,239 miles

Centre Exhaust system not adequately supported (7.1.1)

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

Offside Front Exhaust has a major leak of exhaust gases (7.1.2)

Power steering component(s) leaking (2.3.3b)

Nearside Exhaust has a minor leak of exhaust gases (7.1.2)

Offside Exhaust has a minor leak of exhaust gases (7.1.2)

Pass 30 Mar 2007 74,149 miles
Fail 28 Feb 2007 74,148 miles

Offside Rear wheel bearing rough when rotated (2.6.1)

Front Windscreen wiper not operating automatically when switched on (8.2.1b)

Nearside Headlamp aim too high (1.8)

Nearside Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone 'A' (8.3.1e)

Offside Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone 'A' (8.3.1b)

Windscreen washer provides insufficient washer liquid (8.2.3)

Pass 19 Dec 2005 72,885 miles

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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NNU 377P is a 1976 Triumph Stag in Orange with a 2,997cc petrol engine. This vehicle has been through 27 MOT tests with a personal pass rate of 74.1%.

Across all 1976 Triumph Stag models, the average MOT pass rate is 75.5% with a typical mileage of 57,333 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 NNU 377P, 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 50 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 NNU 377P?

You can check the full history of NNU 377P by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was NNU 377P registered?

NNU 377P is a 1976 Triumph Stag, first registered on 23 April 1976.

Is NNU 377P safe to buy?

The MOT history for NNU 377P shows 27 tests with a 74.1% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does NNU 377P 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 NNU 377P. 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.