Setobrick

LEGO part 3788: Wheel Arch, Mudguard 2 x 4 Studded

Transportation - Land11 colours102 sets

LEGO part LEGO part 3788: Wheel Arch, Mudguard 2 x 4 Studded

Specifications

Reference3788
CategoryTransportation - Land
MaterialABS plastic
Colours11
Sets102
Listed pieces210
First appearance1995
Latest appearance2010
Element (Red)378821
Most common colourRed
Main themesRacers, Town, City
Latest set3182 Airport
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 3788, Wheel Arch, Mudguard 2 x 4 Studded, belongs to the Transportation - Land category. It exists in 11 colours and appears in 102 sets of our database, from 1995 to 2010, for a total of 210 listed pieces. Its most common colour is Red.

Number 3788 identifies the shape and is moulded under the part. Each colour also has its own element ID, the one Pick a Brick uses: in red, it is 378821.

Part 3788 through the years

The oldest set in our database that contains part 3788 is 6544 Shuttle Transcon 2, released in 1995 in the Town theme. No set in our database uses it after 2010, the year of 3182 Airport. To get it today, look for older sets or buy it second-hand.

Its peak year is 2009, with 15 sets containing it. The set with the most copies is 8186 Street Extreme: 8 copies, against an average of 2.1 per set.

It is spread across several themes, led by Racers (34%), Town (30%) and City (11%). With 102 sets, it ranks no. 1,103 of 2,731 parts in our database and no. 22 of 80 in the Transportation - Land category.

Sets containing part 3788, by period

PeriodSets
1995-199932
2000-200959
201011

Colours of part 3788

4 colours appear in only one set: tan (4850 Spider-Man's First Chase), dark bluish gray (8199 Security Smash), dark blue (8194 Nitro Muscle) and light gray (6598 Metro PD Station).

Colour (element ID)SetsPiecesExample sets
Red37882138567241456110159
Yellow3788243454318278987242
White42892722331654478926545
Black4195378 · 3788262142773365968211
Blue4500520 · 378823912483881978182
Lime4568940 · 429801345819281528147
Orange4550877 · 450052135821181868135
Tan4205531124850
Dark Bluish Gray118199
Dark Blue118194
Light Gray378802116598

Where to buy part 3788

Setopedia shows no prices: they vary by colour, condition and seller. Amazon links are affiliate links.

Search part 3788 on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 3788

Sets ranked by popularity that include at least one part 3788, in any colour.

Related parts

Often found with part 3788

Parts that share the most sets with part 3788, based on set inventories.

More parts in the Transportation - Land category

All parts in the Transportation - Land category

Frequently asked questions

How many LEGO sets include part 3788?

Part 3788 (Wheel Arch, Mudguard 2 x 4 Studded) appears in 102 sets listed on Setopedia, from 1995 to 2010, in any colour.

Which LEGO set contains the most copies of part 3788?

Set 8186 Street Extreme, released in 2009, contains 8 copies, the highest count in our database. On average, a set containing part 3788 has 2.1.

Which colours does LEGO part 3788 come in?

11 colours are listed for part 3788. The most common is Red, found in 38 sets.

What is the rarest colour of part 3788?

According to our inventories, it is dark bluish gray, found in only 1 set (8199 Security Smash).

What is the element ID of part 3788 in red?

In red, part 3788 has element ID 378821. Number 3788 is the mould number, the same for every colour.

Is LEGO part 3788 still used in recent sets?

Not in our database: its last set dates from 2010 (3182 Airport). Look for it in second-hand sets or on BrickLink.

Where can I buy LEGO part 3788 individually?

Single parts 3788 can be ordered on Pick a Brick (lego.com) in colours currently produced, or on BrickLink for older colours. The part is also included in the sets listed on this page.