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ONO 11M

1973 Triumph Stag

Yellow Petrol 3000cc
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MOT Status

Valid
Expires13 May 2027
Tests23 (17 pass, 6 fail)
Pass rate73.9%

Mileage

73,476 mi
Last recorded73,476 miles
Recorded on8 May 2026
Typical for 1973 Triumph Stag53,671 mi

Above average mileage for this year

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

RegistrationONO 11M
MakeTriumph
ModelStag
Year1973
ColourYellow
Fuel typePetrol
Engine3,000cc

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

17 pass 6 fail
Pass 8 May 2026 73,476 miles
Fail 7 May 2026 73,473 miles

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

Pass 14 May 2025 72,749 miles
Fail 14 May 2025 72,749 miles

Offside Headlamp aim too low (4.1.2 (a))

Pass 26 Feb 2024 71,962 miles
Pass 21 Apr 2023 71,475 miles
Pass 11 Apr 2022 70,511 miles
Pass 6 Mar 2021 69,587 miles
Pass 4 Jun 2019 67,445 miles

Nearside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement Inner bush (5.3.4 (a) (i))

Pass 19 Mar 2018 66,111 miles

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

Fail 17 Mar 2018 66,110 miles

Nearside Front Headlamp aim beam image obviously incorrect (1.8.A.1b)

Nearside Rear Stop lamp not working (1.2.1b)

Offside Front Headlamp aim beam image obviously incorrect (1.8.A.1b)

Offside Rear Stop lamp not working (1.2.1b)

Nearside Front Steering rack gaiter deteriorated (2.2.D.2d)

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

Pass 28 Jun 2017 65,999 miles

power steering rack damp with oil possible leak

Fail 28 Jun 2017 65,999 miles

Nearside Windscreen washer provides insufficient washer liquid (8.2.3)

Offside Windscreen washer provides insufficient washer liquid (8.2.3)

power steering rack damp with oil possible leak

Pass 11 May 2016 65,734 miles

Nearside Rear Trailing arm rubber mounting deteriorated but not resulting in excessive movement DEBONDING (2.4.G.2)

Offside Front UNDER SILL RUSTING

Pass 23 May 2014 65,631 miles

slight play in n/s/r wheel bearing

Pass 21 May 2013 65,483 miles

Nearside Front wheel bearing has slight play (2.5.A.3c)

Offside Front suspension has slight play in a lower suspension ball joint (2.5.B.1a)

Offside Front wheel bearing has slight play (2.5.A.3c)

Pass 4 May 2012 65,324 miles
Fail 25 Apr 2012 65,318 miles

Nearside Front Lower Suspension arm ball joint dust cover missing (2.4.G.2)

Nearside Rear Braking system leaking (3.6.A.1)

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

Windscreen washer provides insufficient washer liquid (8.2.3)

Nearside Front Suspension arm has slight play in a ball joint (2.4.G.2)

Nearside Rear wheel bearing has slight play (2.6.2)

Offside Front wheel bearing has slight play (2.5.A.3c)

Offside Rear wheel bearing has slight play (2.6.2)

Offside Track rod end ball joint has slight play (2.2.B.1f)

suspect rear wheel cylinder leaking inside drum.

Pass 10 Jun 2010 65,114 miles

Nearside Rear Rear wheel bearing has slight play (2.6.2)

Pass 4 Jun 2009 64,958 miles

front brake disces rusty

Pass 23 May 2008 64,769 miles
Fail 23 May 2008 64,769 miles

Nearside Front Side repeater not working (1.4.A.2c)

Nearside Rear Stop lamp not working (1.2.1b)

Offside Rear Stop lamp not working (1.2.1b)

Pass 9 May 2007 64,587 miles

front pads wearing thin.

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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ONO 11M is a 1973 Triumph Stag in Yellow with a 3,000cc petrol engine. This vehicle has been through 23 MOT tests with a personal pass rate of 73.9%.

Across all 1973 Triumph Stag models, the average MOT pass rate is 77.9% with a typical mileage of 53,671 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 ONO 11M, 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 53 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 ONO 11M?

You can check the full history of ONO 11M by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was ONO 11M registered?

ONO 11M is a 1973 Triumph Stag, first registered on 18 September 1973.

Is ONO 11M safe to buy?

The MOT history for ONO 11M shows 23 tests with a 73.9% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does ONO 11M 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 ONO 11M. 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.