-80x80.jpg)
_7lx6-mg-750x750h.jpg "Grand Rock 4 Inch Exhaust Diverter Valve")
_6hy9-iw-750x750w.jpg "Grand Rock 4 Inch Exhaust Diverter Valve")
_q68a-ll-750x750w.jpg "Grand Rock 4 Inch Exhaust Diverter Valve")
_7lx6-mg-80x80h.jpg "Grand Rock 4 Inch Exhaust Diverter Valve")
_6hy9-iw-80x80w.jpg "Grand Rock 4 Inch Exhaust Diverter Valve")
_q68a-ll-80x80w.jpg "Grand Rock 4 Inch Exhaust Diverter Valve")
Grand Rock 4 Inch Exhaust Diverter Valve
$0.00
- Part Number: HDT-4A
- Est. Ship Time: Discontinued
SSL SECURE
TRANSACTION
AUTHENTIC
PRODUCTS
GUARANTEED PREMIUM
QUALITY
A+ Rating
More from this brand
Starting From $18.20
Starting From $17.17
Starting From $24.43
Starting From $28.76
_7lx6-mg-250x250h.jpg "Grand Rock 4 Inch Exhaust Diverter Valve")
Product Discontinued (Updated 12-31-24)
Grand Rock 4 Inch Exhaust Diverter Valve
10.5" x 13"
Part number HDT-4A..
$0.00
-250x250h.jpg "Grand Rock 5 Inch Exhaust Diverter Valve")
Grand Rock 5 Inch Exhaust Diverter Valve
Part number HDT-5A..
$365.13
Silicone Intercooler Hose 03-09 5.9L/6.7L Dodge Cummins. Works on stock trucks but will also withstand the higher boost pressures of modified trucks...
$24.50
The Cool Hose is available by itself or in complete kits including intercooler Hump hoses and turbo to intercooler connection hose.All hoses are made ..
$260.00
-250x250.jpg "08-10 Ford 6.4L Powerstroke Airaid Air Intake System")
AIRAID Cold Air Box Intake System; 400-214-1
PDF Install Instructions
Fits:
FORD F-250 SUPER DUTY PICKUP 2008-2010 V8 6...
$0.00
Grand Rock 5 Inch Exhaust Diverter Valve
Part number HDT-5A..
$365.13
Fits all 727 Transmission bodies to 2001 (36RH, 37RH - 66 to 89) (46RH, 47RH - 89 to 95) also called the A-518 (46RE, 47RE - 96 to 01) (48RE 03-07 Do..
$244.85
DiscontinuedThe EasySeal offers the best value in wideband exhaust clamps. Used for joining exhaust members of the same diameter. The unique design ma..
$0.00
4 Inch Inlet 18" Long Turn Down Stainless Exhaust Tip
Part number: BQ9-404018TD, by Different Trend..
$53.63
4" 409 stainless steel performance mandrel bent universal 90 exhaust degree elbow.
4" i.d. X 4" o.d.
6" bend radi..
$59.20
Diamond Eye 4" Torca Lap Joint Clamp. Available in aluminized or stainless
Diamond Eye part numbers:
L40AA (Aluminized)
L40SA (Stainle..
$20.46
6 Inch Stainless Weld-On Exhaust Tip
4 Inch Inlet, 6 Inch Out, 15" Long.
By Flo-Pro
Part Number: 406015RAC..
$58.22
Backordered
Backordered (Updated 6/5/25)
For 1994-2002 Dodge 5.9L Cummins Diesels.
4" Mandrel bent tubing for maximum flow
Lower Exhaust Gas..
$144.00
UA2007 3 1/2" ID to 4" OD, 7" Length Fits all pickup models Now you can hook-up to your MBRP 4" and 5" hardware no matter what size your syst..
$54.99
UA2001 4" ID to 5" OD, 7" Length Fits all pickup models Now you can hook-up to your MBRP 4" and 5" hardware no matter what size your system. This ad..
$44.99
Backordered
Backordered with No ETA (Updated 6/3/25)
Item LJ500SS is currently out of stock with No ETA. (Updated 6/3/25)
5" Inlet, 5" outlet, 18&q..
$104.20
This clamp features a welded flap design to prevent leakage at the closing point, it features .030" gauge 304 stainless steel. Includes grade 8 r..
$18.20
This clamp features a welded flap design to prevent leakage at the closing point, it features .030" gauge 304 stainless steel. Includes grade 8 r..
$17.17
The Grand Rock V-Band Clamp VB-384G is a replacement for the factory clamp your 2001-2015 GM 6.6L Duramax. This clamp joins the bottom of your do..
$24.43
Fits: 1999-2003 Ford 7.3L Powerstroke
Grand Rock V-Band Clamp for turbo to downpipe connection.
Grand Rock: VB-429F7..
$28.76
V-Band clamp for the turbo to downpipe connection on 2003-2007 Ford 6.0L Powerstroke engines
OEM Part Number
6C34-5A281-AA
Grand Rock..
$30.81
Grand Rock 5 Inch Exhaust Diverter Valve
Part number HDT-5A..
$365.13
High Quality Dual Chrome Diesel Pickup Truck Smoke Stack Kit
Kits include everything needed to mount the stacks and connect to your existing exha..
$954.10
Slide-In, Straight through muffler helps reduce harsh exhaust tones.
This item is designed to fit by first REMOVING your stack from the connection,..
$63.89
-250x250.jpg "Grand Rock 6 Inch Hood Stack Kit")
Universal Hood Stack Kit
This kit does not include the stack, or the piping under the hood!
Grand Rock: HSK-6..
$197.36
High Quality Dual Chrome Diesel Pickup Truck Smoke 6" Stack Kit
Kits include everything needed to mount the stacks and connect to your existin..
$1,332.00
Universal Hood Stack Kit
This kit does not include the stack, or the piping under the hood!
Grand Rock: HSK-7
..
$194.19
Slide-In, Straight through muffler helps reduce harsh exhaust tones.
Aluminized Steel
This item is designed to fit by first REMOVING your stack..
$60.84
Grand Rock 7" Hood Stack
Universal Competition Stacks:
Intended for Race/Competition Off-Road Use ONLY! *Lowers your EGT's! Universal..
$212.99
Grand Rock 6" Hood Stack
Universal Competition Stacks:
Intended for Race/Competition Off-Road Use ONLY! *Lowers your EGT's! Universa..
$182.56
4" Stack Pickup Truck T-Pipe Kit
By Grand Rock
The 4 inch T-Pipe sits in the bed, and only one hole needs to be cut in the bed of the truck..
$803.79
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 60121. The Universal design allows the par..
$506.00
07.5-10 GM 6.6L Duramax LMM MagnaFlow OEM Grade Federal / EPA Compliant Diesel Oxidation Catalyst MAG60504
Keep the check engine light off with Mag..
$1,083.00
The AP Exhaust 24677 4" Pre-Cut Flex Hose features a stainless steel construction with a 4" ID. This flex hose is ideal for many application..
$32.35
Black Powder Coated Bolt On 6″ x 12″ Rolled Slant
Inner Diameter: 4.00"
Outer Diameter: 6.00&..
$66.71
Backordered
Backordered with No ETA (Updated 6/3/25)
This polished 304 stainless turn out clamp on exhaust tip from FLO~PRO is the perfect option for your..
$179.95
Backordered
Backordered with No ETA (Updated on 6/3/2025)
The AP Exhaust 24838 5" Stainless Steel Pre-Cut Flex Hose features a stainless stee..
$49.69
aFe Power is proud to introduce the all new diesel exhaust tip. This tip comes with a black finish and is designed to fit 3-1/2" exhaust systems...
$112.00
aFe Power is proud to introduce the all new diesel exhaust tip. This tip comes with a black finish and is designed to fit 4" exhaust systems. Wit..
$137.00
aFe POWER is proud to introduce an all new intercooled exhaust tip. This tip comes with a black finish and is designed to fit 4" exhaust systems...
$152.00
Nothing looks cooler than a huge tip completing your exhaust system. The aFe Power tip is constructed out of high luster, polished 304 stainless steel..
$93.00
The polished aFe 304 stainless steel exhaust tip is designed to fit 4" exhaust systems. A 304 stainless steel band clamp ensures a very secure gr..
$93.00
The polished aFe 304 stainless steel exhaust tip is designed to fit 4" exhaust systems. A 304 stainless steel band clamp ensures a very secure gr..
$93.00
aFe POWER is proud to introduce an all new intercooled exhaust tip. This tip comes with a high luster polished finish and is designed to fit 4" e..
$137.00
aFe POWER is proud to introduce an all new intercooled exhaust tip. This tip comes with a polished finish and is designed to fit 4" exhaust syste..
$137.00
aFe Power is proud to introduce the all new diesel exhaust tip. This tip comes with a black finish and is designed to fit 4" exhaust systems. Wit..
$137.00