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SN51 SYO

2001 Dennis Unknown

Red Diesel 8268cc
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MOT Status

Expired
Expires16 Jun 2026
Tests3 (3 pass, 0 fail)
Pass rate100%

Mileage

192,016 mi
Last recorded192,016 miles
Recorded on17 Jun 2025
Typical for 2001 Dennis Unknown169,560 mi

Above average mileage for this year

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

RegistrationSN51 SYO
MakeDennis
ModelUnknown
Year2001
ColourRed
Fuel typeDiesel
Engine8,268cc

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

3 pass
Pass 17 Jun 2025 192,016 miles

Front Vehicle structure is corroded but structural rigidity is not significantly reduced (6.1.1 (c) (i))

Rear Vehicle structure is corroded but structural rigidity is not significantly reduced (6.1.1 (c) (i))

Pass 3 Jun 2024 78,541 miles
Pass 25 Apr 2023 77,261 miles

How Reliable is the Dennis Unknown?

Based on 1,061 MOT tests across 474 vehicles.

81.4%
Pass Rate
1,406
Miles/Year
25
Year Lifespan
474
On UK Roads

Top MOT Failure Points

outline marker lamp(s) not working 6
Service brake: efficiency below requirements 6
position lamp(s) not working 6
Full Dennis Unknown reliability report

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SN51 SYO is a 2001 Dennis Unknown in Red with a 8,268cc diesel engine. This vehicle has been through 3 MOT tests with a personal pass rate of 100%.

Across all 2001 Dennis Unknown models, the average MOT pass rate is 75.8% with a typical mileage of 169,560 miles. This particular vehicle has performed better than the average for its year.

The most common reason a Dennis Unknown fails its MOT is outline marker lamp(s) not working, accounting for 6 recorded failures. If you're considering buying SN51 SYO, it's worth having these areas checked by a mechanic before committing.

The Dennis Unknown typically stays on UK roads for around 25 years. At 25 years old, this Dennis Unknown is approaching the upper end of the typical lifespan for this model.

Frequently Asked Questions

How do I check the history of SN51 SYO?

You can check the full history of SN51 SYO by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was SN51 SYO registered?

SN51 SYO is a 2001 Dennis Unknown, first registered on 11 October 2001.

Is SN51 SYO safe to buy?

The MOT history for SN51 SYO shows 3 tests with a 100% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does SN51 SYO 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 SN51 SYO. 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.