{"title":"Off-Road Suspension Upgrade Kit","description":"\u003cp\u003eEverything you need to rebuild or upgrade your Black Series HQ Series suspension in one place. Pair genuine OEM shocks, springs, bushings, and arms with the hardware to fit them — or step up to the Radflo remote-reservoir shock for race-grade performance. Build the kit, save when you buy the set, and tackle the whole job in a single order.\u003c\/p\u003e\u003cp\u003eShips from Upland, CA.\u003c\/p\u003e","products":[{"product_id":"independent-suspension-arms-12-10-inches","title":"Independent Suspension Arms 12\/10 Inches 2022 Model and Newer","description":"\u003cp\u003eGenuine Black Series OEM independent suspension arms for HQ12, HQ15, HQ17, and HQ19 camper trailers — 2022 model year and newer. These are the factory-specification control arms used in current HQ production, ensuring correct geometry, caster, and camber alignment with no modification required.\u003c\/p\u003e\u003cp\u003eThe 12\/10 inch configuration provides improved ground clearance and articulation versus the earlier suspension specification. Powder-coated red for durability and corrosion resistance in harsh outback conditions.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e 12\/10 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Powder coated red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Black Series HQ Series Universal, 2022 model year and newer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYear compatibility:\u003c\/strong\u003e 2022 and newer (does NOT fit pre-2022 models — different geometry)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e These arms are for 2022+ models only. Pre-2022 HQ models use a different geometry specification. If you're unsure of your year model, check the compliance plate on the A-frame or contact us with your chassis number.\u003c\/p\u003e","brand":"Black Series","offers":[{"title":"10inches Left","offer_id":51055773974829,"sku":"RVP-00005","price":800.0,"currency_code":"USD","in_stock":true},{"title":"10inches Right","offer_id":51055774007597,"sku":"RVP-00005-2","price":800.0,"currency_code":"USD","in_stock":true},{"title":"12inches Left","offer_id":51055774040365,"sku":"RVP-00005-3","price":800.0,"currency_code":"USD","in_stock":true},{"title":"12inches Right","offer_id":51055774073133,"sku":"RVP-00005-4","price":800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/5625\/2717\/files\/1_ae5ff16b-12d2-46ed-81cb-3955198cedf8.jpg?v=1750097777"},{"product_id":"off-road-shocks","title":"Off-road Shock","description":"\u003cp\u003eGenuine Black Series OEM off-road shock absorber for HQ Series camper trailers. Gas-charged steel body with powder-coated red finish — the same specification fitted at factory to all HQ Series models.\u003c\/p\u003e\u003cp\u003eDesigned and tuned specifically for the HQ Series independent suspension geometry, these shocks deliver consistent damping performance across corrugated outback roads, rocky tracks, and mixed-terrain touring. Direct bolt-in replacement — no modification required.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Gas charged monotube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody material:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Powder coated red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Black Series HQ Series Universal\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor performance-oriented replacement, see our \u003ca href=\"\/collections\/radflo\"\u003eRadflo remote reservoir upgrade shocks\u003c\/a\u003e which offer external compression adjustment and improved heat management for extended corrugated touring.\u003c\/p\u003e","brand":"Black Series","offers":[{"title":"Default Title","offer_id":46678413115693,"sku":"RVP-00006","price":380.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/5625\/2717\/files\/AC32350E-805D-44AA-BFFC-9AFE50EB1768.png?v=1752941838"},{"product_id":"off-road-springs","title":"Hi Performance Off-road Springs","description":"\u003cp\u003eGenuine Black Series OEM hi-performance coil springs for HQ Series camper trailers. Factory-fitted to all HQ Series models — these are the direct replacement specification springs used in production.\u003c\/p\u003e\u003cp\u003eThe progressive spring rate (130–150 N\/mm) provides a compliant ride on lighter loads while stiffening progressively as load increases — important for a camper that's often towed both empty and fully laden. Powder-coated red to match the HQ suspension system aesthetic.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Powder coated red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter diameter:\u003c\/strong\u003e Ø18.5mm wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring dimensions:\u003c\/strong\u003e 120.5 × 288mm body\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring rate:\u003c\/strong\u003e 130–150 N\/mm (progressive)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal coils:\u003c\/strong\u003e 9.5 (8.0 live, 1.5 dead)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing length:\u003c\/strong\u003e 248mm at 5338N (version 2.0)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e All Black Series HQ Series Universal\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Black Series","offers":[{"title":"Default Title","offer_id":46678518989101,"sku":"RVP-00007","price":280.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/5625\/2717\/files\/CE9105ED-D62E-4334-998F-CD359226CE42.png?v=1752943324"},{"product_id":"off-road-stablizer-legs","title":"Folding Stabilizer Leg - Adjustable Height","description":"\u003cp\u003eGenuine Black Series OEM folding stabilizer leg with adjustable height for HQ Series camper trailers. Provides rock-solid support when parked, eliminating the lateral sway and movement that degrades interior comfort and puts stress on the coupling. Folds flat for travel to keep the trailer ground clearance uncompromised.\u003c\/p\u003e\u003cp\u003eTool-free height adjustment for uneven ground. Corrosion-resistant steel construction. Sold individually.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Folding stabilizer leg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e Adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Black Series HQ Series Universal\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Black Series","offers":[{"title":"19.69' (Folded）","offer_id":50758312296749,"sku":"RVP-00012","price":130.0,"currency_code":"USD","in_stock":true},{"title":"21.65' (Folded）","offer_id":50808047894829,"sku":"RVP-00012-2","price":141.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/5625\/2717\/files\/2_3ab3ccab-7aa0-4f32-8280-703969c0764e.jpg?v=1750097770"},{"product_id":"u-bolt","title":"U-bolt","description":"\u003cp\u003eGenuine Black Series OEM U-bolt for HQ Series camper trailers. This U-shaped fastener clamps suspension and axle components securely to the chassis — a critical structural fixing that must hold up under the constant loading of off-road towing. A direct replacement for a stretched or corroded U-bolt.\u003c\/p\u003e\u003cp\u003eDirect OEM factory replacement.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Black Series HQ Series Universal\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Black Series","offers":[{"title":"Default Title","offer_id":46747162476845,"sku":"RVP-00168","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/5625\/2717\/files\/U.jpg?v=1750097591"},{"product_id":"suspension-bushings-pair","title":"Suspension Bushings","description":"\u003cp\u003eReplacement suspension bushings for Black Series HQ Series off-road trailers. These bushings sit between the suspension arm and chassis, absorbing vibration and impact on corrugated tracks while keeping suspension geometry tight. Worn bushings cause clunks, play, and uneven tire wear — replacing them restores ride quality and handling.\u003c\/p\u003e\u003cp\u003eSold as a pair. Direct OEM-style fitment for Black Series HQ Series models.\u003c\/p\u003e","brand":"Black Series","offers":[{"title":"Suspension Bolt Kit with Washers and Nuts (1 Set)","offer_id":50865672290605,"sku":"RVP-00216","price":20.0,"currency_code":"USD","in_stock":true},{"title":"Blue Suspension Bushing (1 Pair)","offer_id":50865672323373,"sku":"RVP-00216-2","price":80.0,"currency_code":"USD","in_stock":true},{"title":"Bushing Sleeve 1","offer_id":50865672356141,"sku":"RVP-00216-3","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Suspension Bushing Kit – Full Set with Hardware (As Pictured)","offer_id":50865672388909,"sku":"RVP-00216-4","price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/5625\/2717\/files\/Bushings.png?v=1750097527"},{"product_id":"complete-suspension-accessory-parts-sets","title":"Complete suspension accessory parts sets","description":"\u003cp\u003eGenuine Black Series OEM complete suspension accessory hardware set for HQ Series camper trailers. Includes all the small consumable components — bolts, nuts, bushings, and clips — needed for a full suspension service or rebuild. Supplied as a kit so you have every component in hand before starting work.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Full set of suspension hardware (bolts, nuts, bushings, clips)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Black Series HQ Series Universal\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Black Series","offers":[{"title":"Default Title","offer_id":50790239830317,"sku":"RVP-00225","price":350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/5625\/2717\/files\/A72B9E48-DD39-45BA-B1DD-C4756CB97AC4.png?v=1753713379"},{"product_id":"suspension-spring-bump-stop","title":"Suspension Spring Bump Stop","description":"\u003cp\u003eUpgrade your RV's ride quality and protect your suspension with this spring suspension bump stop. It absorbs impact and softens harsh bottoming-out, acting as a critical buffer between axle and frame so your suspension components last longer on rough roads and washboard trails.\u003c\/p\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCushions axle-to-frame contact to reduce harsh bottoming out\u003c\/li\u003e\n\u003cli\u003eHelps extend the life of springs, shackles, and related suspension parts\u003c\/li\u003e\n\u003cli\u003eBuilt for the demands of towing and off-road travel\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eConfirm fitment for your trailer's suspension before ordering. Ships from Upland, CA.\u003c\/p\u003e","brand":"Black Series","offers":[{"title":"Default Title","offer_id":51939688317229,"sku":"RVP-00761","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/5625\/2717\/files\/BumpStopStanding.jpg?v=1775154116"},{"product_id":"radflo-shock-with-remote-reservoir-compression-adjuster-for-blackseries-hqs","title":"Radflo Shock with Remote Reservoir for Black Series HQ","description":"\u003cp\u003eRadflo Shocks are the ultimate in performance for you Blackseries. The same technology that goes into our championship winning race shocks is built into these bolt in OE replacement shocks. The shocks improve your ride quality and performance both on and off the road. Radflo engineers spent countless hours custom valving the shocks. In turn you will experience incredible dampening and can forge any trail.\u003c\/p\u003e\n\u003cp\u003eShocks are suitable for a wide range of lift kits and available as a remote reservoir or with compression adjusters.  Because all shocks wear out eventually, we designed every single component to be easily serviced or replaced. Even the individual valve shims can be changed to fine-tune damping performance. Our highly experienced technicians can perform these services, or you can service the shocks yourself for immediate results.\u003c\/p\u003e\n\u003cp\u003eAll Radflo OE Replacement Shocks are custom built-to-order, and uniquely valved to meet you and your vehicle’s unique needs and specifications. Average turnaround time 10 days. What we mean by built-to-order.\u003cbr\u003e\u003cstrong\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Type: OE Replacement 2.5 Inch Diameter Rear Smooth Body Shock For 0-2 Inch Lift Height, With Remote Reservoir\u003c\/li\u003e\n\u003cli\u003eYear\/Make\/Model: All Blackseries HQs\u003c\/li\u003e\n\u003cli\u003eLift Height: 0-2 Inch\u003c\/li\u003e\n\u003cli\u003eFront\/Rear App: Rear\u003c\/li\u003e\n\u003cli\u003eBearing Size: OE Determined\u003c\/li\u003e\n\u003cli\u003eBody Diameter: 2.5 Inch\u003c\/li\u003e\n\u003cli\u003eBody Material: SSID Alloy Steel Tube\u003c\/li\u003e\n\u003cli\u003eBody Finish: Clear Cadmium Plating\u003c\/li\u003e\n\u003cli\u003eBody Caps\/Eyelets Material: CNC Machined 6061 Aluminum\u003c\/li\u003e\n\u003cli\u003eBody Caps\/Eyelets Finish: Black Anodized\u003c\/li\u003e\n\u003cli\u003eMounting Hardware: OE Location and Hardware\u003c\/li\u003e\n\u003cli\u003eRod Material: Nitro Steel or Mirror Polished Chromed Rod\u003c\/li\u003e\n\u003cli\u003eRod Finish: Mirror Polished or Chrome Plated\u003c\/li\u003e\n\u003cli\u003eRod Guide Material: CNC Machined Bronze\u003c\/li\u003e\n\u003cli\u003eRod Guide Finish: PTFE Coating\u003c\/li\u003e\n\u003cli\u003ePiston Type: Radflo Aluminum Freeflo Racing Piston\u003c\/li\u003e\n\u003cli\u003eSeal Type: Combination Quad-Ring and Lip Seal (Rebuildable)\u003c\/li\u003e\n\u003cli\u003eService Status: Factory Serviceable\u003c\/li\u003e\n\u003cli\u003eValving Type: Velocity-Sensitive Deflective Disc\u003c\/li\u003e\n\u003cli\u003eValving Tuning: Consumer or Factory Tunable\u003c\/li\u003e\n\u003cli\u003eValving Adjustment: Self-Adjusting\u003c\/li\u003e\n\u003cli\u003eOil Type: Radflo High-Temp Foam Resistant Suspension Fluid\u003c\/li\u003e\n\u003cli\u003ePressurization: Nitrogen Gas\u003c\/li\u003e\n\u003cli\u003ePressure Amount: 200 psi\u003c\/li\u003e\n\u003cli\u003eSold Individually\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Radflo","offers":[{"title":"Default Title","offer_id":51988210614573,"sku":"RVP-00890","price":700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0808\/5625\/2717\/files\/P1001124-rotated.webp?v=1776198817"}],"url":"https:\/\/www.rvpartsgiant.com\/collections\/off-road-suspension-upgrade-kit.oembed","provider":"RV Parts Giant","version":"1.0","type":"link"}