Big Rock 4X4 V3 3S BLX (ARA4312V3) · not V4/223S

ARRMA Big Rock 3S V3 Parts & Upgrades

Every ARRMA Big Rock 3S V3 part ExactMods has on record, with the source behind its fitment. Only models named by the source are covered.

22 records · 18 categories · 5 upgrades

Match My Mod

OEM Replacement15

OEM

ARRMA · AR330543 / ARA330543

Front Suspension Arms (2)

OEM replacement

ARA4312V3 exploded view specifies AR330543; retailer explicitly identifies Big Rock V3 and Typhon fitment. Source also lists: Typhon 3S.

Important note

Wide-arm geometry; not Granite/Senton.

Confidence: High

Verified Sep 28, 2026

Price not captured

View at ARRMA

Price and availability may have changed.

Full fitment details
OEM

ARRMA · AR330540 / ARA330540

Rear Suspension Arms (2)

OEM replacement

ARA4312V3 exploded view specifies AR330540; V3 retailer listing pairs it with Big Rock V3. Source also lists: Typhon 3S.

Important note

Wide-arm geometry; not Granite/Senton.

Confidence: High

Verified Sep 28, 2026

Price not captured

View at ARRMA

Price and availability may have changed.

Full fitment details
OEM

ARRMA · AR330550 / ARA330550

Front Shock Set (2)

OEM replacement

V3 exploded view specifies AR330550; explicit listing names Big Rock, Granite, Senton and Typhon 3S. Source also lists: Granite 3S; Senton 3S; Typhon 3S.

Important note

No springs; two dampers. Supporting parts: AR330538 front springs shown in V3 diagram.

Confidence: High

Verified Sep 28, 2026

Price not captured

View at ARRMA

Price and availability may have changed.

Full fitment details
OEM

ARRMA · AR330551 / ARA330551

Rear Shock Set (2)

OEM replacement

V3 exploded view specifies AR330551; explicit listing names all four 3S families. Source also lists: Granite 3S; Senton 3S; Typhon 3S.

Important note

No springs; requires AR330460 or AR330539. Supporting parts: AR330539 rear springs.

Confidence: High

Verified Sep 28, 2026

Last seen: $21.99

Last seen status: In stock

View at ARRMA

Price and availability may have changed.

Full fitment details
OEM

ARRMA · AR310780 / ARAC4041

Composite Front Slider Driveshaft Set

OEM replacement

V3 exploded view specifies AR310780. Source also lists: Granite 3S; Senton 3S; Typhon 3S.

Important note

Pair.

Confidence: High

Verified Sep 28, 2026

Last seen: $18.99

Last seen status: In stock

View at ARRMA

Price and availability may have changed.

Full fitment details
OEM

ARRMA · AR310864 / ARAC4043

Composite Rear Slider Driveshaft Set

OEM replacement

V3 exploded view specifies AR310864. Source also lists: Granite 3S; Senton 3S; Typhon 3S.

Important note

Pair.

Confidence: High

Verified Sep 28, 2026

Last seen: $18.99

View at ARRMA

Price and availability may have changed.

Full fitment details
OEM

ARRMA · AR310884 / ARAC3955

Composite Center Slider Driveshaft

OEM replacement

V3 exploded view specifies AR310884; kit includes a long-wheelbase front section. Source also lists: Senton 3S; Typhon 3S; Granite 3S via alternate included section.

Important note

Use long-wheelbase section. Supporting parts: Select correct included section.

Confidence: High

Verified Sep 28, 2026

Last seen: $8.99

Last seen status: In stock

View at ARRMA

Price and availability may have changed.

Full fitment details
OEM

ARRMA · ARA310956

Diff Set 37T 1.35M

OEM assembly

V3 diagram specifies ARA310956; explicit fitment covers all four families. Source also lists: Granite 3S; Senton 3S; Typhon 3S.

Important note

One assembled front-or-rear diff; replace ARA311031 as recommended. Supporting parts: ARA311031 recommended.

Confidence: High

Verified Sep 28, 2026

Last seen: $59.99

Last seen status: In stock

View at ARRMA

Price and availability may have changed.

Full fitment details
OEM

ARRMA · ARA311031

HD Input Gear 13T

OEM replacement

V3 differential diagram specifies it; ARRMA requires ARA310872 or ARA310956. Source also lists: Granite 3S; Senton 3S; Typhon 3S.

Important note

Matched 1.35-module part. Supporting parts: ARA310872 or ARA310956.

Confidence: High

Verified Sep 28, 2026

Last seen: $9.99

View at ARRMA

Price and availability may have changed.

Full fitment details
OEM

ARRMA · AR550052 / ARA550052

dBoots Ragnarok MT Pre-Mounted Set

OEM replacement

ARA4312V3 diagram specifies AR550052; V3 take-off listing identifies four factory-glued Ragnarok wheels/tires.

Important note

Merchant offer is a set of four take-offs; OEM retail packaging can differ.

Confidence: High

Verified Sep 28, 2026

Price not captured

View at Jenny's RC

Price and availability may have changed.

Full fitment details
OEM

ARRMA · AR320357 / ARAC3476

Body Post Set

OEM replacement

V3 rear exploded view specifies AR320357; retailer identifies it as Big Rock body post.

Important note

Broad multi-post pack; choose correct lengths/positions. Supporting parts: Select correct posts from kit.

Confidence: High

Verified Sep 28, 2026

Last seen: $8.99

Last seen status: 5 in stock

View at LiquidRC

Price and availability may have changed.

Full fitment details
OEM

ARRMA · ARA340179

Steering Parts Set

OEM replacement

Exact replacement list names ARA4312V3, ARA4303V3, ARA4302V3 and ARA4306V3. Source also lists: Granite 3S; Senton 3S; Typhon 3S.

Important note

Servo saver sold separately.

Confidence: High

Verified Sep 28, 2026

Last seen: $9.99

Last seen status: In stock

View at Atlanta Hobby

Price and availability may have changed.

Full fitment details
OEM

ARRMA · AR330542 / ARA330542

Steel Turnbuckle M4x48mm (2)

OEM replacement

V3 exploded view uses AR330542; exact Big Rock V3 spares listing carries ARA330542. Source also lists: Granite 3S; Senton 3S; Typhon family listings exist.

Important note

Pair only; determine whether steering or camber position is being serviced. Supporting parts: Existing rod ends/pivot balls.

Confidence: High

Verified Sep 28, 2026

Last seen: £7.59

Last seen status: Ships same day

View at Wheelspin Models

Price and availability may have changed.

Full fitment details
OEM

ARRMA · ARA320613

Wheelie Bar Set

OEM replacement

V3 exploded view specifies ARA320613; retailer explicitly lists Big Rock and Granite BLX compatibility. Source also lists: Granite 3S.

Important note

Full assembled bar; mounting hardware included according to retailer. Supporting parts: Rear bumper.

Confidence: High

Verified Sep 28, 2026

Last seen: $18.99

View at Friendly

Price and availability may have changed.

Full fitment details
OEM

ARRMA · ARA610041

6x12x4mm 2RS Bearings (2)

OEM replacement

V3 front/rear exploded view specifies ARA610041; ARRMA sells two rubber-shielded bearings. Source also lists: Granite 3S; Senton 3S; Typhon 3S through shared V3 exploded-view callout.

Important note

Only two bearings per pack; full vehicle quantity is higher. Supporting parts: Buy required quantity.

Confidence: High

Verified Sep 28, 2026

Last seen: $9.99

Last seen status: In stock

View at ARRMA

Price and availability may have changed.

Full fitment details

Aftermarket Replacement2

Verified Replacement

FastEddy · TFE6457

Big Rock 3S BLX V3 Sealed Bearing Kit

Full bearing kit

Manufacturer explicitly names Big Rock 3S BLX V3.

Important note

Full kit; Horizon listing marks this SKU discontinued, although other merchants may stock it.

Confidence: High

Verified Sep 28, 2026

Discontinued online

View at FastEddy

Price and availability may have changed.

Full fitment details
Verified Replacement

Pro-Line · PRO1011010

Super Swamper 2.8 MT Mounted Tires (2)

Performance replacement

Pro-Line explicitly supports Big Rock 3S using included 14mm adapters. Source also lists: Granite 3S.

Important note

Two tires; larger MT setup. Supporting parts: Included 14mm adapters.

Confidence: High

Verified Sep 28, 2026

Price not captured

View at Pro-Line

Price and availability may have changed.

Full fitment details

Upgrade5

Upgrade

RPM · RPM80762

Front A-Arms

Durability upgrade

Replaces OEM AR330543

RPM replaces AR330543 and flags Big Rock variation by installed OEM arm number. Source also lists: Typhon 3S.

Important note

Confirm AR330543 is installed; older Big Rock variants may use Granite arms. Supporting parts: Verify installed OEM arm number.

Confidence: High

Verified Sep 28, 2026

Last seen: $12.49

View at RPM

Price and availability may have changed.

Full fitment details
Upgrade

RPM · RPM80842

Rear A-Arms

Durability upgrade

Replaces OEM ARA330540

RPM replaces ARA330540 and cautions Big Rock owners to verify the installed arm. Source also lists: Typhon 3S.

Important note

Older Big Rock variants may use Granite arms. Supporting parts: Verify installed OEM arm number.

Confidence: High

Verified Sep 28, 2026

Last seen: $12.49

View at GS Hobby

Price and availability may have changed.

Full fitment details
Upgrade

Integy · C28854

Billet Machined Universal Driveshafts

Steel CVD upgrade

Replaces OEM AR310780; AR310864

Manufacturer explicitly lists ARA4312V3 and replacement of stock front/rear shafts; sold as a pair for either end. Source also lists: Granite ARA4302V3; Senton ARA4303V3; Typhon ARA4306V3.

Important note

Two pairs needed for a complete chassis. Supporting parts: Second pair for all four corners.

Confidence: High

Verified Sep 28, 2026

Price not captured

View at Integy

Price and availability may have changed.

Full fitment details
UpgradeRevision Check

Pro-Line · PRO637500

Extended Front/Rear Body Mounts

Adjustable upgrade

Retailer explicitly supports Big Rock, Granite and Senton 4x4. Source also lists: Granite 3S; Senton 3S.

Important note

Exact V3 product code not stated. Supporting parts: Alternate body shell as applicable.

Check your revision

The source does not confirm the exact ARA4312V3 revision. Read the note and check your model before buying.

Confidence: Medium-High

Verified Sep 28, 2026

Last seen: $14.99

View at Nitro

Price and availability may have changed.

Full fitment details
Upgrade

ARRMA · AR310904 + AR310905 + AR310906

17mm Wheel Hex Conversion Components

Conversion

These three components appear together at each corner in the Big Rock V3 exploded view; retailer describes them as the parts needed for a 17mm conversion and names Big Rock, Granite, Senton and Typhon. Source also lists: Granite 3S; Senton 3S; Typhon 3S.

Important note

Four corners require two packs of two hexes and axles plus one four-nut pack; verify desired wheel offset. Supporting parts: AR310904 hexes, AR310905 axles, AR310906 nuts; quantities for four corners.

Confidence: High

Verified Sep 28, 2026

Price not captured

Last seen status: Mixed stock by component

View at Hobbyfactory

Price and availability may have changed.

Full fitment details

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